Seiko Cal. 4415 - 512

This Spring Drive model from 1972 features a 44mm Titanium case. Powered by the 4415 caliber with 22j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-ba933988ffee]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1972

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