Seiko Cal. 5637 - 769

This Quartz model from 1977 features a 40mm PVD Black case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f0a38277d871]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1977

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