Seiko Cal. 7131 - 396

This Hand-Winding model from 1982 features a 40mm Two-Tone case. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-e5d03b28a458]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1982

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