Seiko Cal. 6637 - 395

This Quartz model from 1981 features a 38mm PVD Black case. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-0add0d8f7660]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1981

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