| Group | Digital |
| Watchmaker | Casio |
| Model | F-91W |
| Sub-Model/Designation | F-91WM-7A |
| Operating Mode | 12/24 Hour |
| Mechanism | Quartz |
| Display Type | Digital |
| Complications |
Stopwatch Countdown Timer Dual Hours Tachymeter Alarm Date Day Moon Phase Day/Night / AM/PM Temperature Tide |
| Movement | Sensor Watch |
| Hacking / Stop-Seconds | yes |
| Battery | CR2016 |
| In Rotation | yes |
| Comment | Custom Sensor Watch replacement, with temperature sensor |
| Notes |
Time last set/synced: 24 Sept 2026 FC: 1966 https://www.sensorwatch.net/docs/watchfaces/nanosec/ The F screen tells me that if I apply this adjustment, the static time correction value will increase by 0.4104 ppm. (This will make my watch about 12.9 seconds slower per year.) A long LIGHT press applies the adjustment to the time and updates the static time correction value. This is what I did above. Sensor Watch will be more accurate going forward! A long ALARM press applies the adjustment to the time but does not update the static frequency correction. This is what you need to do the very first time you use Finetune, when you initially set the exact time. |