Seiko Cal. 6644 - 676

This Spring Drive model from 1990 features a 39mm PVD Black case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-2305ffc95e04]

Also known as: Turtle, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1990

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