Seiko Cal. 5645 - 317

This Spring Drive model from 1977 features a 46mm Gold-Plated case. With its 21mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-f745b26d0229]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1977

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