Seiko Cal. 4477 - 837

Seiko 4477-837

The 4477-837 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4477 caliber with 20j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-f53a8a9bc263]

Also known as: UFO, Rally

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
41mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Green
Jewels
20j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1973

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seikata-wm-f53a8a9bc263