Seiko Cal. 4578 - 937

This Kinetic model from 1971 features a 37mm Two-Tone case. Powered by the 4578 caliber with 36j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-413ec7344e6b]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1971

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