ETA 2688

Template:File C Calibre by ETA

Mechanical movement with self-winding, ball-bearing rotor, bi-directional winding, power reserve: 38 hours, date with quickset, hacking seconds.

The movement was used with ladies' watches, partly also with smaller men's models. Oris used from ca. 1996 an own development, based on this calibre (Oris 581, 583, 584, 585).

Description: Self-winding movement with bi-directional winding, ball-bearing rotor Swiss lever escapement Incabloc shock protection Yoke winding system Functions: Hours, minutes Central seconds with hacking seconds Date with quickset date feature Data: 8¾ lignes Ø 19.4 mm, H 5,35 mm 17 jewels 21,600 A/h Power reserve 38-40 h Production period: 1985-2004