Seiko Cal. 6635 - 628

The Seiko 6635-628 represents an important milestone in Seiko's 1994 lineup. It features a Black dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-0dff80809e67]

Also known as: Turtle, Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1994

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