Seiko Cal. 7154 - 617

The Seiko 7154-617 represents an important milestone in Seiko's 1981 lineup. Powered by the 7154 caliber with 20j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-04d450f82cfe]

Also known as: Sumo, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1981

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