The ETA 255.487 is a quartz-controlled stepper motor movement that offers a range of functions for an analog display. It includes the display of hours, minutes, and sweep seconds with the ability to set the day hand at 10h by changing the 22-24 hour period. The movement also includes a quickset date hand and a month hand at 2h which can be set via the date setting. Additionally, it features a moon-phase display that can be quickly set. The ETA 255.487 movement was in use around 1990.
ETA Caliber 255.487
TECHNICAL DATA
| Country of Manufacture |
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FUNCTIONS
| Movement type | |
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| Certification | |
| Functions |
Date, Day, Hacking stop, Month, Moon phase, Quick date correction |
| Display |
6 hands, Central seconds hand, Central hour hand, Central minute hand, Central date hand, Day hand at 10:00, Month hand at 2:00, Moon phase wheel at 6:00 |
| Jewel | |
| Frequency |
ADDITIONAL INFORMATION
| Battery life | |
|---|---|
| Battery cell |
Detailed description