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

Remarks:

• Movement family:
  • Wostok 2602: without shock protection, no date
  • Wostok 2603: with shock protection, no date
  • Wostok 2605: with shock protection, date

• Listing ID: 10225
• Manufacturer / Brand: Wostok / Vostok
• Caliber: 2603
• 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: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Wostok
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 36 hours
• Production Period: Unknown, probably around 1960
• Country: Russia
• Identification: Movement marked with 2603 under the balance wheel. Original datasheet for the 2602 (w/o shock protection) available.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)