ETA 2671

• 17/21/25 jewels, automatic wind, date.
  
• S: = 7.75''' 17.50 mm.
• H: = 4.80 mm.
• N: = 28.800 A/h.
• Power reserve: 40 h.

Versions 7.75''' 21.600 A/h.

• 2640: manual wind.
• 2641: manual wind, date.
• 2648: manual wind, day-date.
• 2650: automatic wind.
• 2651: automatic wind, date.
• 2658: automatic wind, day-date.

Versions 7.75''' 28.800 A/h.

• 2660: manual wind.
• 2661: manual wind, date.
• 2668: manual wind, day-date.
• 2670: automatic wind.
• 2671: automatic wind, date.
• 2675: automatic wind, date, moon-phase.
• 2678: automatic wind, day-date.

Versions 8.75'''

• 2681: 28.800 A/h, automatic wind, date.
• 2685: 28.800 A/h, automatic wind, date, moon-phase.
• 2688: 21.600 A/h, automatic wind, day-date.
• 2691: 21.600 A/h, manual wind, date.