Seiko Cal. 6635 - 376

The Seiko 6635-376 represents an important milestone in Seiko's 1972 lineup. Powered by the 6635 caliber with 34j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-0653648ce9a8]

Also known as: Bellmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1972

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