Seiko Cal. 6637 - 604

This Hand-Winding model from 1989 features a 36mm PVD Black case. It features a Cream dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-08df685be93b]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1989

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