Seiko Cal. 4550 - 453

The Seiko 4550-453 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-90f25701bbaf]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

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