Seiko Cal. 7131 - 776

This Spring Drive model from 1988 features a 43mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-77471370e2cc]

Also known as: Monster, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1988

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