Seiko Cal. 6635 - 908

The Seiko 6635-908 represents an important milestone in Seiko's 1998 lineup. Powered by the 6635 caliber with 29j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-c6d9296a1ade]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1998

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