Seiko Cal. 5631 - 815

This Quartz model from 1987 features a 34mm PVD Black case. It features a Champagne dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-64ecd6f0ab2b]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1987

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