Seiko Cal. 7137 - 635

This Spring Drive model from 1971 features a 44mm Two-Tone case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-3733517fe790]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1971

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