Seiko Cal. 4412 - 819

This Spring Drive model from 1971 features a 45mm Titanium case. Powered by the 4412 caliber with 30j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-9752ba660371]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1971

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