Seiko Cal. 5647 - 375

The Seiko 5647-375 represents an important milestone in Seiko's 1967 lineup. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-23b7ad242cc3]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1967

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