Seiko Cal. 6631 - 537

This Quartz model from 1985 features a 44mm PVD Black case. It features a White dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-e07f92752a36]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1985

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