Seiko Cal. 4542 - 550

The 4542-550 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-f4b03aa20bd5]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1972

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