Seiko Cal. 5672 - 331

The Seiko 5672-331 represents an important milestone in Seiko's 1973 lineup. Powered by the 5672 caliber with 35j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-0f987d0064b6]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1973

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