Seiko Cal. 4555 - 539

The Seiko 4555-539 represents an important milestone in Seiko's 1974 lineup. It features a Silver dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-259ae77f0a96]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1974

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