Seiko Cal. 4557 - 804

This Spring Drive model from 1973 features a 43mm Titanium case. Powered by the 4557 caliber with 33j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-921234794409]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1973

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