Seiko Cal. 6637 - 863

The Seiko 6637-863 represents an important milestone in Seiko's 1996 lineup. Powered by the 6637 caliber with 25j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-d78298beef28]

Also known as: Shogun

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1996

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