Seiko Cal. 7138 - 147

This Spring Drive model from 1973 features a 42mm Titanium case. It features a Cream dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-45fcbc5fd6f1]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1973

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