Seiko Cal. 7090 - 154

The Seiko 7090-154 represents an important milestone in Seiko's 1978 lineup. Powered by the 7090 caliber with 31j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-c69f7b6d29de]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1978

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