Seiko Cal. 4456 - 798

This Automatic model from 1977 features a 35mm Titanium case. Powered by the 4456 caliber with 31j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-16c739fa95ca]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1977

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