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Seiko 5700

The Seiko 5700 family of movements powered many high-end Seiko models in the 1960's.

Produced from 1960 through the mid 1970's, these were high-end manual winding movements. The line began with the original Grand Seiko's Calibre 3180, which was later renamed 5720A. The next variants, calibre 57, added a calendar module that would be included on many successors. The next Grand Seiko's 430 movement was renamed 5722A, and was majorly upgraded to 19,800 A/h with 1966's 5722B. Another big jump came in 1967 when the Lord Marvel received a true Hi-Beat version, the 36,000 A/h 5740C.

The 5700 stream also produced a historic chronograph. Seiko was the official timer at the 1964 Tokyo Olympics and supplied a number of simple countdown chronographs with 5718A movements. There were also mono-pusher chronographs produced with the 5717 and 5719 movements.

Variants

  • 3180/5720A (1960) - 25 jewels, Grand Seiko, 18,000 A/h
  • 57A (1961) - 21 jewels, Crown Self Dater
  • 57B (1961) - 21 jewels, Crown
  • 5760 (1961) - 23 jewels, Crown Special
  • 430/5722A (1963) - 35 jewels, Grand Seiko Chronometer, 18,000 A/h
  • 5722B (1966) - 35 jewels, Grand Seiko, 19,800 A/h
  • 5740A (1964) - 23 jewels, 57 Lord Marvel, 18,000 A/h
  • 5740B (1966) - 23 jewels, 57 Lord Marvel, 19,800 A/h
  • 5740C (1967) - 25 jewels, 57 Lord Marvel, 36,000 A/h
  • 5717A (1964) - 21 jewels, Chronograph Calendar
  • 5718A (1964) - 21 jewels, “Count Graph” for Olympics, 2+2 pushers, 2-hand subdial
  • 5719A (1964) - 21 jewels, Chronograph (no date)
seiko_5700.txt · Last modified: 03.07.2022 15:38 by 127.0.0.1

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