Seiko Cal. 6637 - 790

The Seiko 6637-790 represents an important milestone in Seiko's 1993 lineup. Powered by the 6637 caliber with 23j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-d8b81a2ae4ec]

Also known as: Emperor, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1993

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