Seiko Cal. 6637 - 231

This Kinetic model from 1988 features a 40mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-bbafdc4cdc72]

Also known as: Rally, Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1988

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