Stick around, get to 50 posts and gain access to your full profile and additional features such as a personal messaging system, chat room and the sales forum PLUS the chance to enter our regular giveaways. Rotate your 6497-powered wristwatch so that the crown is at 12 o’clock and you’ll see the subsidiary seconds in the standard pocket-watch position at six. Maintenance needs are not all that different between watch movements, Cheers! Right: An industrially finished version from Tourby watches. 8 6. New: IWC and Mercedes launches the Pilot’s Watch Chronograph Edition “AMG”, New: Leica SL2-S – the latest DSLM from Wetzlar – best of both worlds with hands-on Chillout TGIFridays, The Rolex Submariner and the Omega Seamaster, Review: Seiko PADI Automatic Diver SRPA21. OP XXIX. In searching for ETA 6497 and 6498 technical drawings, I came across this very low resolution ETA 6497-1 & 6497-2 drawing on a blog post. Those Arnex produced pocket watches are a great source of 6497/6498 movements, but I'm afraid the word has gotten out and the prices have marched right up! #ShootYourWatches2 contest is still open and now on its final week! 43mm SILVER LACO Luftwaffe Fliegeruhr Watch Case for Unitas 6497 6498. There are 2 main versions of each movement the -1 and -2. 6498 was designed for a hunter case, so it has the sub-seconds dial in a different place. Sold in packages of 2. Over the last few days, I spent several hours working on three. ETA Unitas Caliber 6497 VS. 6498. OP X. OP XI. 6497, the Lépine version. ETA 6497 Disassembly For the sake of full transparency the pictures presented in this post are of a Seagull ST3600 swan neck movement. ; The Caliber Corner page compares the 6497 to the 6498. While they are both the same size, have 17 jewels, and a small seconds subdial at 6:00, there are two main differences that are important to keep in mind when choosing your 6497 powered watch… Beat Rate: The big difference between the two 6497 … Additional prizes added. Watchscape&Review: Breguet Double Tourbillon Ref. The fourth wheel completes a rotation every minute and as the ratio of the third wheel to the fourth pinion is 7.5 (60/8), it means the third wheel completes a rotation every 7.5 minutes. In short, it’s a modder’s dream. HR 44mm BRUSHED with Glossy bezel Watch Case ETA Unitas 6497 6498 ST36. As the ratio of the fourth wheel to the escape pinion is 12 (120/10), it means the fourth wheel turns every 60 seconds (it carries the small seconds hand). Though “basic”, the robust nature of the 16 1/2 ligne  Lepine-style manual pocket watch has powered some of the most legendary to the most pedestrian of watches in the last few decades. The main difference between the 6498-1 and the 6498-2 is that the -1 beats at 18,800vph while the -2 beats at 21,600vph. The movement beats at 21’600 beats per hour or 6 beats per second (3Hz). I have a hamilton with this movement in it, very acurate, takes a beating, and I love getting to wind it up throughout the day. Left: A raw Unitas 6497 as used by Bulova back in the day. It is a large movement, measuring 16.5 ligne (36.6 mm) in diameter but is only 4.5 mm thick thanks to a compact manual winding design. Given the pocket-watch sized nature of the calibre, there is little doubt that watch cases had to “grow” to fit, heralding a trend to larger watches. Thanks in advance, hoarybat 6497 vs 6498: The caliber 6498-1 is often mixed up with the ETA/Unitas 6497-1. Yet, it does not remain unchanged and unevolved, in the calibre can be so thoroughly renovated that it resembles nothing it used to be – case in point, the Maurice Lacroix ML-16 skeletonised with added date wheel. The 6497 and 6498 were designed as pocket watch movements and are therefore quite large. The 6498 is a hunter configuration. 6497 vs 6498 The caliber 6498-2 is often mixed up with the ETA/Unitas 6497-2. Modern The second tends to be better finished and can beat at either 2.5 or 3Hz, whereas the -1 versions are 2.5Hz only. The ETA 6498-1 Untitas is a typical "Savonatte" movement. Many collectors credit Stallone’s indelible performance in Daylight whilst wristed with a Panerai for sparking the trend for big watches but the inception and taint in the horological zeitgeist began as early as three years earlier in 93 with the brand’s resurgence of Panerai’s Marina. ... 16 lignes ½ ‴ 36,60 mm Reference 6497-1 UNITAS ... Overview. 6497 and 6498 date to about 1950. The main difference between the 6498-1 and the 6498-2 is that the -1 beats at 18,800vph while the -2 beats at 21,600vph. To modern ears, we know them as ETA today, the Unitas 6497 and 6498 manual wind movements differ in architecture, most obviously displayed by the different locations of the subsidiary seconds. Luminous watch hands to fit Unitas 6497 and Unitas 6498 which have hand holes sizes of 1.15 mm for the minute and 2.0 mm for the hour hand. That said, the Unitas 6497 is a victim of its own success, it costs so little in terms of retail ($300, far less if you buy wholesale) that even after extensive modifications have been made, buyers can bulk at Unitas powered movements costing over $1500. Unitas 6497: The Surprisingly Versatile Calibre, a small boutique brand called Molnar Fabry, Throwback Sundays: Six Recommendations for a Twin Register Chronograph, from Our Archives, Review: Patek Philippe World Time Ref. $79.95. Omega used a variant in the Railmaster XXL, modified with a Triovis regulator instead of Etachron. The 6497’s small seconds are at 9 o’clock, opposite the crown. The main gears are non-magnetic and the glucydur balance wheel is temperature resistant. A namesake of founder-artisans – Michal Molnar and Igor Fabry. Railmaster XXL, modified with a Triovis regulator instead of Etachron. Superb article and as I keep reminding people you don’t buy a Rolex to tell the time – you buy to let others know – you know how to tell the time. I think that you will find that they are quite close in basic quality and that either one will last a very long time with reasonable care. Differentiating the 6497 and 6498 is the location of the small seconds. Great stuff. The 6498 on the other hand would have small seconds at 6 o’clock, with the crown at 3. It has the position of the small seconds at the 6 clock position and was built mainly for pocket watches with covers. Admiring the quality and precision of Philippe Dufour’s and Antoine Preziuso’s craft, provided the foundation for Molnar Fabry’s inventiveness to find original ways to apply their jewellers’ expertise into the realm of horology, as well as to master more horological complications for a higher form of our artistic expression. in price is not bothersome. Sure, Stallone might have catapulted the idea of a wrist behemoth acceptable for a daily beater but this trend began as something as innocently as needing a right movement and not finding one. To herald the brand’s return, Panerai first turned to Rolex, an understandable reflex given the depth of history between Panerai and then Rolex/Cortebert but Wilsdorf’s firm had turned them down and the Florentine brand had to turn to the humble Unitas 6497. L506.2. Due to where the winding mechanism is located, the 6497 typically displays the seconds at the 9:00 position, versus the 6498’s 6:00 position. Originally launched as a calibre for pocket watches, the 6497 and 6498 are regularly found in wristwatches. There’s a lot of leeway when it comes to the Unitas movement – a larger size lends itself to a larger mainspring barrel with greater torque – with that kind of horsepower, you get options for added complications – double retrograde calendars, secondary timezones etc. Part Interchangeability There are some differences in parts as well. Click here to learn more. A Warning About the Seagull ST-3600 vs ETA/ Unitas 6497. ST. 1 Premium Gold. B-Uhr Pilot 44mm Glossy Watch Case for ETA Unitas 6497 6498 ST36. ETA SA Manufacture Horlogère Suisse Schild-Rust-Strasse 17 - CH-2540 Grenchen Phone: +41 32 655 71 11. Mechanical. Meanwhile, those with the suffix 2 feature Incabloc shock protection and finishing with some variations beating at 21,600 vph. 2 STAR / 00 No Nr No No Nr CS No LISTE DES FOURNITURES BESTANDTEILE LIST OF MATERIALS Cal.-Kal. It’s difficult to correctly express just how amazing the Unitas 6497 is without discussing a small boutique brand called Molnar Fabry. The difference between the two movements is the location of the small seconds, at 6 on the 6498 and 9 on the 6497 (or 3 and 6 in a pocket watch with the crown at the top). Meanwhile, its dogged reliability and sturdy build means that the base calibre can be regulated to chronometer specs made possible by the four-position adjustment device, regulating the rate to precision of anywhere from 0 to 10 seconds a day. The Cal. The movement pictured above is from a Victorinox Swiss Army Airboss Mach 4. The technical details can be found on ETA’s website on the pages of the 6497-1, 6497-2, 6498-1, and 6498-2.; ETA’s training tool has a page for the movement that takes you step by step through the disassembly. 16 lignes ½ ‴ 36,60 mm Reference 6498-2 UNITAS - unavailable Overview. Review: Patek Philippe Ref. 4.50 mm height. That said, the aforementioned ubiquity can downplays just how special a “common” movement can be – an expansive landscape of bridges and plates lend themselves as an expressive canvas for the artistically inclined watchmaker. How does the Unitas 6497 differe from the 6498? ST. 1 Premium Black. Used as the lower cap jewel in ETA 6497-1 & 6498-1 using the Novodiac Shock System. The crown stem is at 0° in relation to the small seconds at 90°. Today, ETA eschews the distinctive large balance cock for pallet lever bridges and an Etachron regulator in the 6497-1 and 6498-1 models. Difference Between Unitas 6497 & 6498 Sign Up to reply and join the friendliest Watch Forum on the web. There is also a difference in the gear train as in the 6497 the fourth wheel is above the third wheel, whereas in the 6498 it is underneath. 44mm PVD B-Uhr Flieger Big Pilot Watch Case for ETA Unitas 6497 6498. The 6497’s small seconds are at 9 o’clock, opposite the crown. Today, the 36.6mm movement is one of the bigger stock movements presently; at 4.5mm, it’s considered slim but not extra-thin by any definition and it operates at a leisurely 18,000 with modern editions modified to provide a buffer of stability through a speedy 21,600 vph or 3Hz. As the escape wheel has 15 teeth, this means it turns every 5 seconds. The -2 typically costs more. Seagull ST-3600. 45 mm Diameter Watch Case for ETA 6497-1 and ETA 6497 Watch Movements Watch Hands 115/200 for Unitas and ETA 6497 & 6498 What is the difference between caliber 6498-1 and 6498-2? What is the difference between caliber 6498-1 and 6498-2? They started as certified jewellers and goldsmiths and then started applying high-jewellery techniques and know-how to high watchmaking. ebauche. The 6497 and 6498 began as UNITAS calibers, but when UNITAS became a part of swatch group, it became an ETA caliber. ETA Unitas Caliber 6498-1 VS. 6498-2. I too would go for the Swiss one versus the Chinese one if the diff. In the pictures below, part of the setting mechanism is missing as it flew across the room. My original goal involved lubricating the movement. $64.95. There are two variations of the ETA/Unitas 6498 including the 6498-1 and 6498-2. You can tell immediately whether a Unitas-equipped watch is a 6497 or 6498, if it has a small seconds sub-dial. Cal. It is manual wind and a lepine configuration. Other than that, the movements are practically identical. ETA Unitas (6497, 6498) – Out of the pocket, on to the wrist. There is also a difference in the gear train as in the 6497 the fourth wheel is above the third wheel, whereas in the 6498 it is underneath. The 6498 on the other hand would have small seconds at 6 o’clock, with the crown at 3. $69.95. The movements were originally produced by Unitas before it was fully integrated with ETA. Also used as both the upper and lower cap jewel on ETA 2660, 2671, 2801-2, 2804-2, 2824-2, 2836-2 and FHF 100 using the Novodiac Shock System. Unitas and ETA 6497 & 6498 take hole size 0.27 mm. ETA 6497-2 / 6498-2 Français / Deutsch / English - 04.03.99 / STAR / 00 ETA SA Fabriques d'Ebauches Marketing-Ventes CH-2540 Grenchen 1 2 1 2 6497-2 6498-2. Close to 70 years old, everyone from Alpina to Zeno has used the humble Unitas as a base calibre. 5345 – is it twice as spectacular? Other calibers that are based on the ETA 6497-1: IP 12. A highly modified ETA 6497 from Steinhart with some hand finishing on this limited edition model. I also love reminding my friend with a panerai that my Hamilton has, more or less, the same movement at 1/7 the price. The resurgence of the Unitas 6497 and 6498 and emergence of the Seagull ST36 began with the popularity of the Panerai line of watches around the year 2000. Additional Resources: ETA/Unitas 6497 VS 6498; ETA/Unitas 6497-1 VS 6497-2; ETA 6497 Disassembly $64.95. Now branded ETA, the Unitas 6497 and 6498 manual-wind movements differ only in the location of the small seconds hand and sub-dial. Even the power reserve can vary between 40 to 56 hours. The -1 beats at 18,800vph while the -2 beats at 21,600vph and is COSC. ETA Mecaline 6497-1 specifications: Hours, minutes, small second @ 9 o’clock (6 o’clock for 6498-1) 16.5”’ (36.60 mm) in diameter. But the escape wheel only advances by half a tooth per beat, or 3 teeth per second. movements also referred to as the Asian 6497. It’s versatility and technical specifications allow it be a calibre of great repute on all spectrums of horology – from a watchmaking apprentice’s practice watch to a standard of high horology, the 66 year old movement is simply ideal and in short, evergreen. What is the difference between ETA/Unitas caliber 6497 and 6498? The 6497 is often referred to as a pocket watch movement because that is the roots of its design. See Thru "Exhibition Back" Watch Cases in Stainless Steel and Rose Gold PVD Plated. Watch Case 45 mm Style #7 Sapphire Glass & #8 Mineral Glass to Fit ETA 6497-1 and 6498-1. 6498 family is a Savonette or hunter pocket watch calibre and thus has the sub seconds dial at 6:00, 90º off-axis from the crown and winding stem, but is closely related to Cal. The Seagull ST3600 (or ST36) is the Chinese clone of the ETA/UNITAS 6497. Manufacturers began using the 6497/98 for inexpensive pocket watches. Other manufacturers seized on the trend and began using the Auguste Reymond SA (ARSA) movement first released in 1950. 18,000 vibrations per hour (2.5 Hz) 17 Jewels. There are two variations of the ETA/Unitas 6497 including the 6497-1 and 6497-2. LOWER-CAP-104.19 $18.00 I feel like I'm going crazy, but I haven't been able to find any technical drawings on the eta.ch website. Click here to learn more. The ratio of the centre wheel to the third pinion is 8 (80/10), meaning the centre wheel rotates every 60 (7.5×8) minutes or once an hour (it carries the minute hand). The 6497 is a 16 1/2 ligne pocket watch movement. Cal. Seagull acts as an. To modern ears, we know them as ETA today, the Unitas 6497 and 6498 manual wind movements differ in architecture, most obviously displayed by the different locations of the subsidiary seconds. Creative Commons Attribution-NonCommercial 4.0 International License, The technical details can be found on ETA’s website on the pages of the, Additional information is available on Worn & Wound’s, Escape wheel has 15 teeth and its pinion has 10 leaves, Fourth wheel (carrying small seconds) has 120 teeth and its pinion has 8 leaves, Third wheel has 60 teeth and its pinion has 10 leaves. It’s difficult to correctly express just how amazing the Unitas 6497 is without discussing a small boutique brand called Molnar Fabry. 6119 – a new reference for the entry-level luxury dress watch, Big Date watches: updates to our recommendation for six of the best. All watches using the ETA 6497-1 movement: H69619533 Hamilton Khaki Field Mechanical Officer Does anyone have this information in a higher resolution? The difference between the two movements is the location of the small seconds, at 6 on the 6498 and 9 on the 6497 (or 3 and 6 in a pocket watch with the crown at the top). Their size makes them easier to manipulate, which is why they are often used to train watchmakers. What is the difference between caliber 6497-1 and 6497-2? They remain in production as of 2019 and are used as a basis for training in many watch schools and are decorated and developed into many complicated movements. That said, look at the number of Unitas 6497 movements and modifications that have rendered them virtually unrecognisable. ETA Unitas 6498-1 hand-wound. OP I. OP II. Let’s look at the gear train of the version of the 6497 in ETA’s training tool to illustrate ratios, which might differ from the version deconstructed below. ST. 1 Premium Silver. 5131/1P-001, Jaeger-LeCoultre heats up the green dial wagon with the new Reverso Tribute Small Seconds Green. There’s a certain ubiquity in the legend that is the Unitas 6497. THANK YOU FOR 500 SUBSCRIBERS! And just to reiterate, although parts can look very similar, as T says, there is a world of difference between an ETA and rep movement (never mind a high finish 6497-2 vs gen Panerai). Caliber Drawings: Watches With This Caliber. The cal. ; Additional information is available on Worn & Wound’s page devoted to the movement. ETA, owns the Unitas name and has been making the Unitas movements for almost 30 years is now stamping the name ETA 6497 and ETA 6498 on … Both the 6497 and the 6498 were developed originally in the 1950s by the movement manufacturer Unitas, but nowadays area manufactured and sold by ETA. Enjoy this quick close-up of an ETA 6498-1 mechanical watch movement.

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