Seiko Cal. 7131 - 388

The Seiko 7131-388 represents an important milestone in Seiko's 1985 lineup. Powered by the 7131 caliber with 27j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-e5a06af407e1]

Also known as: Samurai, Flighty

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1985

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