Seiko Cronos Special, cal. 810, Model 15039

Serial # 3728285 [July 1963]








Crown unsigned, but otherwise seems to match originals, so not sure if this is original or a very close replacement:



More dial close-ups:





Here's a sample pic of the calibre 810 movement [not my own, but a different watch]:



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Seiko Matsuda
The Patron Saint of Seiko Collectors