| Manufacturer | ETA |
| Caliber Number | 2850 |
| Movement Type | Mechanical, manual-wind |
| Lignes | 11.5”’ |
| Diameter | 25.6mm |
| Height | 4.3mm |
| Jewel Count | Varies |
| Beat Rate | 28,800 vph, 4 Hz |
| Lift Angle | 52 degrees |
| Power Reserve | ~38 hours |
| Hand-Windable? | Yes |
| Anti-Shock Device | Incabloc |
| Hand Count | 3 |
| Functions | Central hours; central minutes; central sweeping seconds |
| Hacking Seconds? | Yes |
| Country of Manufacture | Switzerland, Swiss made |
| Known Models | (Add your watch to the comments below…) |
The ETA caliber 2850 is a vintage time-only manual-wind mechanical movement. It is a true no-date movement.
This caliber is an early member of the ETA 28XX family of movements.
Documentation for this caliber was found as far back as 1976.
Additional Resources:
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Now that's a nice looking watch
Thank you for sharing.