Seiko Cal. 4581 - 231

This Kinetic model from 1971 features a 46mm Titanium case. Powered by the 4581 caliber with 20j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-442dc2250d9f]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1971

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