Seiko Cal. 5640 - 362

This Spring Drive model from 1972 features a 42mm Two-Tone case. Powered by the 5640 caliber with 30j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-870a955769c7]

Also known as: Shogun, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1972

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