Seiko Cal. 6637 - 982

This Automatic 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-6ef39e9e4e97]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1977

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