Seiko Cal. 7138 - 887

This Spring Drive model from 1985 features a 37mm Gold-Plated case. It features a Green dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-20b5dcbaff8d]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1985

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