Seiko Cal. 6637 - 808

The Seiko 6637-808 represents an important milestone in Seiko's 1991 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-be82a866fef5]

Also known as: Samurai, Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

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