Seiko Cal. 7131 - 452

The Seiko 7131-452 represents an important milestone in Seiko's 1967 lineup. Powered by the 7131 caliber with 32j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-2616e61d6f92]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1967

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