Seiko Cal. 4447 - 528

Seiko 4447-528

The 4447-528 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-a7fca3392e41]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
15.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
190m
Dial Color
White
Jewels
22j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1965

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