Seiko Cal. 4442 - 990

Seiko 4442-990

The 4442-990 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4442 caliber with 25j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-7b34eef7c3f4]

Also known as: Crown

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
8.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Champagne
Jewels
25j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1981

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