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You are here: Home / Movements / Seiko 4S71

Seiko 4S71

Last Update: February 5, 2020

Brand:Credor, Seiko
Family:
Seiko 4S Family
Height:
Jewels:25
Reserve:40 hours
Frequency:28,800 A/h
Winding:Automatic, Bi-Directional Automatic Winding
Diameter:25.60 mm (11.5 ligne)
  Complications:Hacking Seconds, Hand Winding
Hands:Central Hour Hand, Central Minute Hand, Central Seconds Hand
Distinguishing Technical Characteristics
Clockwise Balance Cock
Screw Regulator
Balance
Balance at 4:30
Barrel at 12:00
Production: 1995 – 2003
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Cal. 4S71 was a high-end time-only automatic produced by Seiko for the Credor watch line. It was part of the Seiko 4S family, which itself was derived from the historic Seiko 52 stream of movements.

It is a simple movement with central hour, minute, and seconds hands and no date or other complications.

Cal. 4S71 was only used in the Credor GCBB line of watches.

  • Credor Pacifique GCBB999
  • 1995-2003 Credor Pacifique GCBB998
  • 1999-2003 Credor Pacifique GCBB997
  • Credor Pacifique GCBB996
  • Credor Pacifique GCBB994

Early Seiko 4S Movements

From the 1992 introduction of the Seiko 4S family through the early 2000s, Seiko used the 4S line as a high-end movement for diverse watches, including the SUS military, Alpinist, and Titanium diver. Most of these models were retired shortly after introduction, and the series of simple 4S movements was phased out by 2003.

ProductionWatchWindingJewelsNotes
4S121997-1998SCFFAutomatic25Date
Fixed 24 hour hand
4S151995-2001
2006
LHAM
SCFF
SCVF
SCVN
Automatic25Date
4S241990sLJAL
SCVG
Manual21
4S251993-1998SCVH
SCVJ
Automatic25Date
4S281994-2000LJAK
SCVG
SCVM
Manual24Small seconds at 6:00
4S351992-2000SCVKAutomatic25Date
4S711995-2003GCBBAutomatic25

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