ETA 2660

Description:

• Manual winding movement
• Swiss lever escapement
• Incabloc shock protection
• Yoke winding system
• Regulator system ETACHRON

Functions:

• Hours, minutes
• Central seconds

Data:

• 7¾ lignes
• Ø 17.2 mm, H 3.5 mm
• 17 jewels
• 28,800 A/h
• Power reserve ca. 38 h

Production period:

• Since 1971