Seiko Cal. 6635 - 268

The Seiko 6635-268 represents an important milestone in Seiko's 1974 lineup. Powered by the 6635 caliber with 25j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-b34aebdc97ed]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1974

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