Seiko Cal. 4431 - 455

This Automatic model from 1968 features a 39mm Stainless Steel case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d306bbd8ea1f]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1968

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