13 1/4”’ | Hand Wind | Swiss Lever | Indirect Sweeping Seconds |

Remarks:

• Movement family (all with shock protection):
  Tx = Transformation (Change) no x.
  SC = Seconde au cente = sweeping seconds
  PC = Pare-chocs = shock protection
  AM = Antimagnétique = non magnatic
  RG = Regulateur = regulator
  Pierres = jewels
  • Omega 260 (30 T2 PC AM 15 pierres): Base movement, transformation 2, small seconds, 15 jewels
  • Omega 261 (30 T2 PC AM 17 pierres): transformation 2, small seconds, 17 jewels
  • Omega 262 (30 T2 RG 17 pierres): transformation 2, small seconds, 17 jewels, excenter regulator
  • Omega 265 (30 T3 PC AM 15 pierres): transformation 3, small seconds, 15 jewels
  • Omega 266 (30 T3 PC AM 17 pierres): transformation 3, small seconds, 17 jewels
  • Omega 267 (30 T4 PC AM 17 pierres): transformation 4, small seconds, 17 jewels
  • Omega 268 (30 T5 PC AM 17 pierres): transformation 5, small seconds, 17 jewels
  • Omega 269 (30 T6 PC AM 17 pierres): transformation 6, small seconds, 17 jewels
  • Omega 280 (30 SC T2 PC AM 17 pierres): transformation 2, indirect sweeping seconds, 17 jewels6
  • Omega 281 (30 SC T2 RG 17 pierres): transformation 2, indirect sweeping seconds, 17 jewels, excenter regulator
  • Omega 283 (30 SC T3 PC AM 17 pierres): transformation 3, indirect sweeping seconds, 17 jewels
  • Omega 284 (30 SC T4 PC AM 17 pierres): transformation 4, indirect sweeping seconds, 17 jewels
  • Omega 285 (30 SC T5 PC AM 17 pierres): transformation 5, indirect sweeping seconds, 17 jewels
  • Omega 286 (30 SC T6 PC AM 17 pierres): transformation 6, indirect sweeping seconds, 17 jewels
• Older movement family without shock protection:
  • Omega 30: small seconds, 15 jewels
  • Omega 30 T1: transformation 1, small seconds, 15 jewels
  • Omega 30 T2: transformation 2, small seconds, 15 jewels
  • Omega 30 SC: sweeping seconds, 16 jewels
  • Omega 30 T1 SC: transformation 1, sweeping seconds, 16 jewels
  • Omega 30 T2 SC: transformation 2, sweeping seconds, 16 jewels

• Listing ID: 14379
• Manufacturer / Brand: Omega
• Caliber: 284
• Size in French Lignes: 13 1/4''' (30 mm)
• 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: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Incabloc
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 44 hours
• Production Period: 1955+ (108,000 pieces)
• Country: Switzerland
• Identification: Movement marked with OMEGA, Omega logo and 284.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)