Seiko Cal. 4420 - 741

Seiko 4420-741

The 4420-741 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4420 caliber with 36j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-87a2bb3f8431]

Also known as: UFO, Arnie

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
41mm
Case Thickness
11.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Black
Jewels
36j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1972

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seikata-wm-87a2bb3f8431