Seiko Cal. 7138 - 737

This Spring Drive model from 1981 features a 40mm Two-Tone case. It features a White dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-296450a2ec85]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1981

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