Seiko Cal. 4430 - 442

This Automatic model from 1979 features a 42mm Titanium case. Powered by the 4430 caliber with 25j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-ae4ed1d8a4ac]

Also known as: Helmet, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1979

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