ETA 2851

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11 1/2”’ | Hand Wind | Swiss Lever | Direct Sweeping Seconds |

Remarks:

No hacking seconds
The movement shown is skeletonized, the non-skeletonized standard movement looks a bit different (see extra pictures)
Movement family (named GABARIT by ETA):
- 21,600 A/h:
  - ETA 2851: manual winding
  - ETA 2853: manual winding, date
  - ETA 2859: manual winding, date, day
  - ETA 2871: automatic
  - ETA 2873: automatic, date
  - ETA 2879: automatic, date, day
- 28,800 A/h:
  - ETA 2850: manual winding
  - ETA 2852: manual winding, date
  - ETA 2858: manual winding, date, day
  - ETA 2870: automatic
  - ETA 2872: automatic, date
  - ETA 2878: automatic, date, day

Listing ID: 20570
Manufacturer / Brand: ETA
Caliber: 2851
Size in French Lignes: 11 1/2'''
Size range mm largest diameter: 22 - 31 mm
Shape: Round
Winding: Manual (Crown)
Hands Setting: Crown
Seconds Hand: Sweeping seconds (central seconds)
Escapement: Lever (Swiss, English, Glashütte)
Date, Day, Month...: None
Jewels: 17
Setting Lever Screw/Pin Position: Left
Balance Position: Right (0 - 120°)
Shock Protection: Incabloc
Beats per hour: 21,600
Balance Type: Nickel
Power Reserve: Approx. 60 hours
Production Period: Unknown, probably around 1976+
Country: Switzerland
Identification: Movement marked with ETA logo and 2851 under the balance wheel. Original datasheet from 1976 available.