Seiko Cal. 5641 - 873

This Spring Drive model from 1976 features a 46mm Two-Tone case. It features a Burgundy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-e5d3e5883c77]

Also known as: Shogun, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1976

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