Seiko Cal. 4555 - 209

The Seiko 4555-209 represents an important milestone in Seiko's 1991 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-246c22317bb5]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1991

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