Seiko Cal. 4426 - 516

This Quartz model from 1971 features a 45mm PVD Black case. Powered by the 4426 caliber with 18j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-9fef74c09ffb]

Also known as: Helmet, Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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