Seiko Cal. 4556 - 435

This Solar model from 1976 features a 37mm Hardlex-Coated Steel case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-acd393eebd14]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1976

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