Seiko Cal. 6337 - 635

The Seiko 6337-635 represents an important milestone in Seiko's 1999 lineup. Powered by the 6337 caliber with 29j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-34990dfd47a1]

Also known as: UFO, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1999

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