Seiko Cal. 4581 - 439

The 4581-439 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-cec654365cda]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1968

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