ETA 2641, 2671-401, Winding stem, generic

• Swiss Made ETA generic winding stem.

• Thread: 0.90 MM.
  

• Fits cal: 2641, 2648, 2651, 2657, 2658, 2661, 2663, 2671, 2677, 2678

Technical data ETA 2671

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

Versions: 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: 28.800 A/h.

• 2660: manual wind.
• 2661: manual wind, date.
• 2668: manual wind, day, date.
• 2670: automatic wind.
• 2671: automatic wind, date.
• 2678: automatic wind, day, date.