Seiko Cal. 5657 - 942

This Quartz model from 1977 features a 39mm PVD Black case. Powered by the 5657 caliber with 26j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-8658867cf34a]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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