Seiko Cal. 7139 - 947

This Spring Drive model from 1977 features a 40mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-f4e8351b6753]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1977

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