Seiko Cal. 4487 - 434

Seiko 4487-434

The 4487-434 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-bd379975c01d]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
9.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
130m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1970

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