Seiko Cal. 7138 - 104

The Seiko 7138-104 represents an important milestone in Seiko's 1990 lineup. Powered by the 7138 caliber with 30j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-b54cc6bea091]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1990

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