Seiko Cal. 7154 - 665

This Spring Drive model from 1989 features a 37mm PVD Black case. Powered by the 7154 caliber with 18j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-8cb12f882899]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1989

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