8 3/4”’ | Automatic | Swiss Lever | Direct Sweeping Seconds | Date |

Remarks:

• Automatic with unidirectional winding
• Sweeping seconds with hacking
• Date with quick setting in the middle crown position
• The movement belongs to a family of movements in which many parts are interchangeable:
  • ETA 2000 or 2000-1
  • ETA 2004:
    Like 2000, but larger 10 1/2”’ plate
  • ETA 2094:
    • 10 1/2”’ Automatic with chrono module based on 2004-1
    • 33 jewels
    • Small second at 9, with hacking
    • Date at 4:30 H, with quick setings
    • Chronograph: 60 central seconds, 30-minute counter (at 3 H) and 12-hour counter (at 6 H)
    • Power reserve: 37 hours
• Differences between ETA 2000 and 2000-1:
  • Change in the number of teeth of the wheel train:
    • Barrel: 90 -> 91 teeth
    • Intermediate wheel: 18 -> 19 teeth
    • Intermediate hand setting wheel of the barrel bridge: 25 -> 24 teeth
  • Increase in the moment of inertia of the balance wheel

 

• Listing ID: 4085
• Manufacturer / Brand: ETA
• Caliber: 2000-1
• Size: 8 3/4'''
• Shape: Round
• Winding: Automatic
• Hand Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: Date
• Jewels: 20
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: Incabloc
• Beats per hour: 28,800
• Balance Type: Glucydur
• Power Reserve: 40 hours
• Production Period: From 1992 as ETA 2000 and since around 1997/98 as ETA 2000-1. Still in production today
• Identification: Marked with ETA 2000-1 under the balance.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-16#post-2731287
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)