Seiko Cal. 4451 - 939

The Seiko 4451-939 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ba4240482eed]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1978

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