Seiko Cal. 4581 - 442

The 4581-442 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4581 caliber with 26j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-f03a263b1e07]

Also known as: Monster, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

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