Seiko Cal. 6637 - 858

This Spring Drive model from 1993 features a 43mm Titanium case. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-8b0f15780ed6]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1993

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