Manufacturer | S. Epson (Seiko) |
Caliber Number | YM92, YM92A |
Movement Type | Quartz, battery-powered |
Lignes | 12”’ |
Diameter | 27.6mm x 24mm |
Casing Diameter | 27mm |
Height | 3.7mm |
Jewel Count | No jewels (0) |
Frequency | 32,768 Hz |
Accuracy Rating | +/- 20 seconds/month |
Battery Cell # | SR927SW / 395 (silver oxide, 1.55 V) |
Battery Life | ~3 years |
Quartz Type | Tuning fork oscillator |
Hand Count | 7 |
Hand Sizes | 1.10mm (hrs) / .65mm (mins) / .21mm (chrono secs) / .21mm (small secs) / .21mm (1/20 secs) / .21mm (chrono mins) / .90 (chrono hrs) |
Functions | Central hours; central minutes; central chronograph seconds; small running seconds at 9:00; combined chronograph hours (12) and minutes subdial at 6:00; 1/20 second chronograph counter at 12:00; date at 3:00 |
Chronograph Layout | 3-6-9 |
Hacking Seconds? | Yes |
Other Features | Low battery warning (EOL), AC reset, quickset date |
Country of Manufacture | Switzerland, Swiss made |
Known Models | (Add your watch to the comments below…) |
The S. Epson caliber YM92A is a quartz chronograph watch movement.
Battery Life:
The battery life in the YM92A is rated at about 3 years depending on how often the chronograph (stopwatch) function is used. The chronograph takes more energy to operate, so it can decrease the battery life faster. Seiko quotes approximately 3 years of battery life when using the chronograph for 2 hours per day. Therefore, if you never use the chronograph, you should get a longer battery life.
Replacement Prices:
At the time of this post, replacement prices for the YM92A were found in the range of $10.40 USD to $32.95 USD.
YM92 Tech Sheets (pdf):
Additional Resources:
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