Seiko 5740: Difference between revisions

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Latest revision as of 15:15, 23 July 2021

Calibre 5740C was Seiko's first 36,000 A/h "Hi-Beat" movement.

Introduced in 1967, the 5740C was used in a Seiko Lord Marvel watch before Hi-Beat technology came to the King Seiko and Grand Seiko ranges.