Seiko Cal. 6635 - 395

The Seiko 6635-395 represents an important milestone in Seiko's 1991 lineup. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-309039fe87ef]

Also known as: Bullhead, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1991

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