Seiko Cal. 7031 - 318

This Quartz model from 1991 features a 36mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-072f9966be48]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1991

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