Seiko Cal. 6639 - 974

This Quartz model from 1985 features a 35mm Stainless Steel case. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-b675bd96e4a6]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1985

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