Seiko Cal. 4447 - 971

Seiko 4447-971

This Hand-Winding model from 1967 features a 39mm Hardlex-Coated Steel case. Powered by the 4447 caliber with 28j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-e302723b0397]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
100m
Dial Color
Silver
Jewels
28j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1967

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seikata-wm-e302723b0397