Seiko Cal. 5679 - 637

This Hand-Winding model from 1972 features a 40mm Two-Tone case. With its 22mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-2f3c9841f71c]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1972

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