Seiko Cal. 5237 - 903

The Seiko 5237-903 represents an important milestone in Seiko's 1991 lineup. Powered by the 5237 caliber with 33j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-414bc70bf843]

Also known as: UFO, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1991

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