Seiko Cal. 5673 - 446

This Spring Drive model from 1984 features a 44mm Hardlex-Coated Steel case. Powered by the 5673 caliber with 27j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-83e5d2213beb]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1984

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