Seiko Cal. 5676 - 904

This Spring Drive model from 1977 features a 34mm PVD Black case. Powered by the 5676 caliber with 36j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-8b76794b176f]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1977

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