Seiko Cal. 5641 - 612

This Hand-Winding model from 1969 features a 35mm Two-Tone case. With its 18mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-4e9ff5a2af77]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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