Seiko Cal. 4423 - 180

This Spring Drive model from 1970 features a 41mm Titanium case. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-caac3cd72727]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1970

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