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

Remarks:

• Used in the first Seiko Champion model. The movement name corresponds to the name of the watch model
• Balance bridge instead of balance cock
• Seiko Diafix setting for escape wheel on the bridge side
• The movement is also available with 19 jewels
• Qualco is a brand of the Benrus watch company
  Also found in watches of other Benrus brands:
  • Sovereign: MODEL 11E4B8 marked on movement
  • Belforte: MODEL 11E4B7 marked on movement

• Listing ID: 2883
• Manufacturer / Brand: Seiko / Qualco
• Caliber: Qualco 11E4B8 = Seiko Champion
• 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: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Seiko Diashock
• Beats per hour: 18,000
• Balance Type: Mono-/Bimetallic screw balance with Breguet hairspring | Glucydur | Nickel | Brass
• Power Reserve: Unknown
• Production Period: From 1960
• Identification: Listed as Qualco 11E4B8 and as Seiko Champion in the Marshall Handy Manual of 1966 (without picture). Qualco logo (Q in shield) marked on barrel bridge.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-31#post-4064775
• Country: Japan
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)