Seiko Cal. 5657 - 315

This Spring Drive model from 1974 features a 39mm Two-Tone case. Powered by the 5657 caliber with 21j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-a9b26e79aaf0]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1974

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