Seiko Cal. 6639 - 772

This Automatic model from 1990 features a 40mm Titanium case. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-8135df2f5ab1]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1990

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