Seiko Cal. 4581 - 451

The 4581-451 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4581 caliber with 24j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-d44dc4664066]

Also known as: Monster, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1973

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