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

Remarks:

• Automatic with bidirectional winding
• Date with quick-setting on middle crown position
• No hacking seconds
• 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: 12040
• Manufacturer / Brand: ETA
• Caliber: 2873
• Size in French Lignes: 11 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Right (0 - 120°)
• Shock Protection: Trishock
• Beats per hour: 21,600
• Balance Type: Nickel
• Power Reserve: Approx. 55 hours
• Production Period: Unknown, probably around 1976+
• Country: Switzerland
• Identification: Movement marked with ETA logo and 2873 under the balance wheel. Original datasheet from 1976 available.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)