Seiko Cal. 4421 - 901

Seiko 4421-901

The 4421-901 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4421 caliber with 22j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-efa7930a9b7a]

Also known as: Monster, Bullhead

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Green
Jewels
22j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1986

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