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

Remarks:

• Date with quick-setting on middle crown position
• Movement family
  • ETA 2722: no date
  • ETA 2724: date
  • ETA 2728: date, day
• First ETA caliber family with 28,800 bph
• Suffix R: Rotor with ball bearing

• Listing ID: 18827
• Manufacturer / Brand: ETA / Helvetia
• Caliber: ETA 2724R / 2724 R = Helvetia 3333
• 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: 25
• Setting Lever Screw/Pin Position: Left
• Balance Position: Right (0 - 120°)
• Holes in setting lever spring or rocking bar: Not visible
• Shock Protection: Incabloc
• Beats per hour: 28,800
• Balance Type: Glucydur
• Power Reserve: Unknown
• Production Period: 1969 - 1972
• Country: Switzerland
• Identification: Movement marked with ETA 2724 under the balance wheel, with HELVETIA on the rotor and with 3333 on the wheel train bridge.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)