Seiko Cal. 4550 - 773

The Seiko 4550-773 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-b105e1243622]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1974

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