Seiko Cal. 6637 - 230

This Spring Drive model from 1989 features a 43mm Titanium case. It features a Silver dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-0e57688b35cf]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1989

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