Seiko Cal. 4427 - 712

This Spring Drive model from 1966 features a 45mm Titanium case. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-787bd2bf2508]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1966

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