Seiko Cal. 0731 - 372

This Spring Drive model from 1980 features a 40mm Hardlex-Coated Steel case. It features a Silver dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-3ed2b9f9394f]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1980

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