Seiko Cal. 7131 - 955

The Seiko 7131-955 represents an important milestone in Seiko's 1992 lineup. Powered by the 7131 caliber with 34j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-733419658a53]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1992

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