Seiko Cal. 4446 - 478

Seiko 4446-478

The 4446-478 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4446 caliber with 30j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-1233bfdc9d6c]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
36mm
Case Thickness
10.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Green
Jewels
30j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1986

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