Seiko Cal. 0727 - 931

The Seiko 0727-931 represents an important milestone in Seiko's 1990 lineup. Powered by the 0727 caliber with 28j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-ea2ed62213f7]

Also known as: Sumo, Flighty

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1990

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