Seiko Cal. 4581 - 442

Seiko 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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