| Manufacturer | Omega |
| Caliber Number | 1538 |
| Base Caliber | ETA 255.461 |
| Type | Quartz |
| Power Reserve | 42 months |
| Jewels | 6 |
| Functions | Hours, minutes, central seconds, date, end of battery life indicator |
| Country of Manufacture | Switzerland |
| Known Models |
Seamaster |
The Omega calibre 1538 is found in the quartz version of the famous James Bond Seamaster. The previous version was caliber 1438 but both are based off the ETA 255.461 movement.
| Manufacturer | ETA |
| Caliber Number | F05.111, F05.111 |
| Dimensions | 10 1/2”’ (23.3mm) x 2.50mm thick |
| Frequency | 32’768 Hz |
| Battery Number | 371 (possibly 399?) |
| Stem | 401-1519 |
| Hand Size | 120/70/20 |
| Jewels | 3 |
| Functions | Hours, minutes, central seconds, date at 3:00 |
| Country of Manufacture | Switzerland (assembled only?) |
| Known Models |
Ladies Hamilton Jazzmaster |
The replacement price for the ETA caliber F05.111 is in the range of $15 – $25.
| Manufacturer | ETA Normflatline |
| Caliber Number | 955.112, 955112 |
| Replaces | 555.115, 955.114 |
| Dimensions | 11 1/2”’ (25.6mm) x 2.50mm thick |
| Frequency | 32’768 Hz |
| Battery Cell Number | 371 (or 395) |
| Stem | 401-906 |
| Hand Sizes | 120, 70, 20 |
| Jewels | 7 |
| Functions | Hours, minutes, central seconds, date at 3:00 or 6:00, end of battery indicator |
| Country of Manufacture | Switzerland |
| Known Models |
Tag Heuer 2000 |
According to a post by The Sydney Tarts:
ETA 955.112 is a very common quartz movement found in gents’ watches. It is also one of the most reliable quartz movements you can get on the market today. The movement is easily replaceable, and a quick glance through the interwebs will net you one of these movements for about 25 bucks. So don’t worry if your watch dies on you. Just drop a new movement in and you have a brand new watch again!
| Manufacturer | ETA |
| Caliber Number | 901.001, 901001 |
| Dimensions | 5 1/2”’ x 6 1/2”’ (13mmx15.15mm) x 2.20mm thick |
| Battery Cell Number | 321 |
| Stem | 401-1369 |
| Hand Sizes | 120, 70 (tap 10) |
| Jewels | 3 |
| Functions | Hours, minutes |
| Country of Manufacture | Switzerland |
| Known Models |
Ladies Tag Heuer, Tissot Pendants |
Replacement prices of $16.95 and $23.50 were found.
| Brand | Maurice Lacroix |
| Caliber Number | ML-16, ML16 |
| Base Caliber | Unitas 6497-1 |
| Movement Type | Manual wind |
| Jewels | 17 |
| Vibrations Per Hour |
18,800 bph |
| Diameter | 36.6mm |
| Thickness | 4.5mm |
| Shock System | Incabloc |
| Winding Direction | Uni-directional |
| Functions | Hours, minutes, small seconds |
| Country of Manufacture | Switzerland |
| Known Brands |
Masterpiece MP7048 |
| Brand | Ingersoll |
| Caliber Number | 526 |
| Movement Type | Automatic |
| Jewels | 23 |
| Power Reserve | Unknown (comment below) |
| Vibrations Per Hour | Unknown (comment below) |
| Features | Hours, minutes, central seconds, day, date, day/night indicator |
| Country of Manufacture | China |
| Known Models | IN1301 |
Ingersoll automatic caliber IN 526. This movement was found in an Ingersoll Pittsburgh model IN1301SL and IN1301BRG. Chinese-made with 20 jewels featuring a big date display, day, month, and 24 hour subdial.
| Manufacturer | ETA |
| Caliber Number | 280.002 |
| Dimensions | 3 3/4”’ x 6 3/4”’ x 1.80mm thick |
| Battery Cell Number | 321 |
| Stem | 401-1155 |
| Hand Sizes | 110, 55 (tap 11) |
| Jewels | 5 |
| Functions | Hours, minutes |
| Country of Manufacture | Switzerland |
| Known Models |
Ladies Century Dragonstone |
This movement also replaces caliber ETA 202.001 and BUL 6170.27.
| Manufacturer | Seagull |
| Caliber Number | TY-802, TY802 |
| Jewels | 27 |
| Functions | Hours, minutes |
| Features |
Rhodium-plated, VVS 1.15mm grade single cut diamond on the tourbillon cage
|
| Country of Manufacture | China |
| Known Models |
Android Virtuoso |
| Manufacturer | ETA |
| Caliber Number | 251.262 |
| Type | Quartz, chronograph |
| Diameter | 13 1/4”’ (30mm) x 5mm thick |
| Battery Cell Number | 394 |
| Stem | 401-1339, Tap 10 |
| Hand Sizes | 200/150/80/30 |
| Jewels | 27 |
| Functions | Hours, minutes, 1/10 seconds, 60 seconds, 60 minutes, 12 hours, split seconds chronograph, date |
| Country of Manufacture | Switzerland |
| Known Models |
Tag Heuer Aquaracer Chrono, add more below |
| Manufacturer | Omega |
| Caliber Number | 1680 |
| Base Caliber | ETA 252.511 |
| Type | SuperQuartz |
| Dimensions | 11 1/2”’ |
| Battery Number | 399 |
| Jewels | 11 |
| Thermocompensated | Yes |
| Functions | Perpetual calendar |
| Country of Manufacture | Switzerland |
| Known Models |
Omega Double Eagle |
From the Omega instruction manual:
The particularity of the Gregorian calendar is that one day (29thFebruary) is added to the year every four years to compensate for the length of the solar year, which is 365.242192 days, or almost 365 1/4days. Such years are called leap years and their number (for example1996) is divisible by 4.
As the compensation of one day every four years is too much, every100 years (2100, 2200, …) the year is not a leap year, even though it is divisible by four. However, even this is not totally sufficient, since it leaves an error of one day every 400 years. Therefore, if the number of the year is divisible by 400 it is a leap year, as was the case with the year 2000. Because of this, the perpetual calendar of your watch is set to function correctly until 2100.
Omega Double Eagle review from bestofwatch.com:
I finally got an Omega Double Eagle (1513.30.00) late last year and have really taken to it. It is powered by the High Accuracy Quartz Calibre 1680 (ETA 252.511) with a perpetual calendar programmed until 2100, a time-zone adjustment (doesn’t interfere with the seconds hand) and has a battery that’s good for 5 years. Unfortunately Omega discontinued it sometime in 2009, possibly because it interfered with the sales of the similarly styled automatic co-axial version…
…I’ve found the variation between room/worn (14 hours a day) is about 7 spy (-4/+3 ), consistent with the 10 spy between room/warm of the Longines VHP. Omega rated it at a very conservative +/- 0.055 seconds per day, i.e. +/- 20spy, versus +/-10spy per ETA (it’s the ETA 252.511 movement).
| Manufacturer | ISA |
| Caliber Number | 9238/1970 |
| Type | Quartz |
| Diameter | 10 1/2”’ x 4.13mm thick |
| Battery Cell Number | 371 |
| Stem | 401-1610 |
| Hand Sizes | 150/90/20 |
| Jewels | 0 |
| Functions | Hours, minutes, central seconds, day subdial, date subdial, 24 hour subdial |
| Country of Manufacture | China |
| Known Models |
Invicta |
At the time of this post, this movement was found at replacement prices of $18.95 USD. The engraving on the pictured example states: ISA Cal. 9238 / 0 JEWEL / FAR EAST ASS’Y / CHINA / INVICTA WATCH GROUP. Picture submitted by Watch Flipr.
Please share your experiences and thoughts about the ISA caliber 9238 in the comments section below…
| Manufacturer | Cartier |
| Caliber Number | 687 |
| Battery Number |
362/361 |
| Diameter | 18.4mm x 2.15mm thick |
| Jewels | 7 |
| Functions | Hours, minutes, seconds, date |
| Country of Manufacture | Switzerland |
| Known Models |
Tank, Diablo, Santos, Panthère, Cougar |
Please share your experiences and thoughts about the Cartier caliber 687 in the comments section below…
| Manufacturer | ETA |
| Caliber Number | 956.412 |
| Dimensions | 8 3/4”’ (19.4mm) x 2.50mm thick |
| Battery Cell Number | 362/361 |
| Stem | 401-906, tap 10 |
| Hand Sizes | 120, 70, 20 |
| Jewels | 7 |
| Functions | Hours, minutes, central seconds, date, end of battery indicator |
| Country of Manufacture | Switzerland |
| Known Models |
Bertolucci |
Please share your experiences and thoughts about the ETA caliber 956.41 in the comments section below…
| Brand | ETA / Valjoux |
| Caliber Number | 7750 |
| Movement Type | Automatic |
| Jewels | 25 |
| Power Reserve | 44 hours |
| Vibrations Per Hour | 28,800 |
| Shock System | Incabloc |
| Features | Hours, minutes, small seconds, central chronograph seconds, day, date |
| Country of Manufacture | Switzerland |
| Known Models | Please add to comments below… |
The pictured example of the caliber 7750 was found in a Kobold Watches Phantom Chronograph. This movement has been custom decorated by the manufacturer.
Please share your experiences and thoughts about the ETA/Valjoux caliber 7750 in the comments section below…
| Manufacturer | Miyota (Citizen) |
| Caliber Number | 0S25 |
| Type | Quartz |
| Replaces Caliber | Citizen 0510 |
| Size | 13.50”’ (30.80mm) diameter x 5.10mm thick |
| Battery Cell Number | SR927W |
| Frequency | 32,768Hz |
| Quartz Type | Tuning fork type quartz crystal |
| Stem | 065-453 |
| Hand Sizes | 120/80/18 |
| Jewels | 0 |
| Functions | Hours, minutes, central chronograph seconds, 1/20 seconds, 60 minute counter, 24 hour hand, date |
| Country of Manufacture | Japan |
| Known Models | TW Steel |
Miyota states the accuracy of this movement to be +/-20 seconds/month. At the time of this post the replacement price is around $28.75.
| Manufacturer | Cartier |
| Caliber Number | 690 |
| Battery Number |
315 |
| Jewels | 8 |
| Functions | Hours, minutes |
| Country of Manufacture | Switzerland |
| Known Models |
Tank |
Please share your experiences and thoughts about the Cartier caliber 687 in the comments section below…
| Brand | Ronda |
| Caliber Number | Ronda 715 |
| Type | Quartz |
| Size | 11 1/2”’ x 2.50mm high |
| Diameter | 26.20mm |
| Battery Cell Number | 371 |
| Claimed Battery Life | 60 months |
| Jewels | 5 (Swiss parts variant has 1 jewel) |
| Hacking | Yes |
| Functions | Hours, minutes, seconds, date |
| Country |
Switzerland (Swiss parts version also available) |
| Known Models |
Bertucci Yankee, add more in the comments below |
According to the Ronda website, there are two versions of this movement: a Swiss parts version with 1 jewel and nickel plated finish, and a 5 jewel version with gold plated finish.
| Brand | Ronda |
| Caliber Number | Ronda 5040.D |
| Type | Quartz |
| Size | 12 1/2”’ x 4.40mm thick |
| Diameter | 28.60mm |
| Battery Cell Number | 395 |
| Claimed Battery Life | 54 months |
| Jewels | 13 for Swiss made (6 for Swiss parts) |
| Hacking | Yes |
| Functions | Hours, minutes, small seconds, 1/10 seconds, chronograph central seconds, 30 minutes counter, 10 hour counter, big date |
| Country |
Swiss parts, assembled in unknown (comment below) |
| Known Models |
Invicta Subaqua Sport |
According to the Ronda website, there are two versions of this movement: a Swiss parts version with 6 jewels and nickel plated finish, and a 13 jewel version with gold plated finish. It also has a power saving mechanism with pulled out stem: Reduction of consumption approximately 70%.
What is the difference between caliber 5040.B and 5040.D?
There are two variations of the Ronda 5040 including the 5040.B and 5040.D. Side by side the specs are identical between these two movements. The difference is the way the calendar is displayed. The 5040.D has a regular date while the 5040.B offers a big date. The back of the movements look exactly the same (except for the B and D in the caliber number). Ronda even uses the same picture of the backs on their site.
pics via ronda.ch