Seiko Cal. 7131 - 404

This Spring Drive model from 1994 features a 40mm Two-Tone case. It features a Cream dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-e5671e9c7ec0]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1994

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