Seiko Cal. 5638 - 957

This Quartz model from 1985 features a 37mm Titanium case. Powered by the 5638 caliber with 31j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-7a570d6a9c84]

Also known as: Sea Horse, Flighty

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1985

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