Seiko Cal. 4592 - 840

This Spring Drive model from 1966 features a 39mm Titanium case. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-12fd91334f54]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1966

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