Manufacturer | ETA |
Caliber Number | 2688 |
Base Caliber | ETA 2681 |
Movement Type | Automatic, self-winding mechanical |
Lignes | 8.75”’ |
Diameter | 19.4mm |
Height | 5.35mm |
Jewel Count | 17 |
Beat Rate | 21,600 vph, 3 Hz |
Lift Angle | 51 degrees |
Power Reserve | 38 hours |
Rotor Style | Ball-bearing |
Hand-Windable? | Yes |
Anti-Shock Device | Incabloc |
Regulator | Etachron with micro-adjuster |
Hand Count | 3 |
Hand Sizes | 1.2mm / .70mm / .20mm |
Functions | Central hours; central minutes; central seconds; day/date at 3:00 |
Hacking Seconds? | Yes |
Country of Manufacture | Switzerland, Swiss made |
Known Models | (Add your watch to the comments below…) |
ETA caliber 2688 is a smaller ladies size automatic watch movement with a day/date complication. This caliber is part of ETA’s 2600 family of movements and was categorized as a Mecaline movement when it was produced. Official technical documentation was found dated as far back as 2005, with updates as recent as 2010.
ETA 2688 Tech Sheets (pdf):
Additional Resources:
Recent Comments
Yes
Is the ST2502 movement self-winding direction one way? Looking at the back of the watch,…
Same player shoot again. Last week, my Pelagos stopped again. This afternoon, they wrote me…
Should be mecaquartz
I have an Endura dive watch. SWISS UNADJUSTED ONE 1 JEWEL 8810 movement.
Thank you for the information.
This caliber is also found on the Tactical Frog Solar Chronograph.