7 3/4”’ | Automatic | Swiss Lever | Direct Sweeping Seconds | Date | Day |

Remarks:

• Automatic: manual winding possible
• Date and day with quick-setting
• Rotor with ball bearings
• ETA 26xx Movement family:
  • ETA 2640: 21,600 bph, hand winding
  • ETA 2641: 21,600 bph, hand winding, date
  • ETA 2650: 21,600 bph, automatic
  • ETA 2651: 21,600 bph, automatic, date
  • ETA 2658: 21,600 bph, automatic, date, day
  • ETA 2660: 28,800 bph, hand winding
  • ETA 2661: 28,800 bph, hand winding, date
  • ETA 2670: 28,800 bph, automatic
  • ETA 2671: 28,800 bph, automatic, date
  • ETA 2678: 28,800 bph, automatic, date, day

• Listing ID: 2293
• Manufacturer / Brand: ETA / Enicar
• Caliber: Enicar 777 = ETA 2658
• Size in French Lignes: 7 3/4'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date & Day
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Right (0 - 120°)
• Shock Protection: Incabloc
• Beats per hour: 21,600
• Balance Type: Glucydur
• Power Reserve: Approx. 40 hours
• Production Period: Probably around 1972
• Identification: Movement marked AR 777 under the balance. Data sheet of the ETA 2658 from 1972 is available.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-39#post-5108177
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)