Seiko Cal. 4431 - 188

This Quartz model from 1970 features a 45mm Titanium case. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-156b661242fa]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1970

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