Seiko Cal. 0787 - 931

The Seiko 0787-931 represents an important milestone in Seiko's 1994 lineup. Powered by the 0787 caliber with 31j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-73ae562caf7a]

Also known as: World Timer, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1994

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