Seiko Cal. 4487 - 337

Seiko 4487-337

This Hand-Winding model from 1983 features a 42mm Gold-Plated case. Powered by the 4487 caliber with 29j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-e51734f98f6c]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
15.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
Black
Jewels
29j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1983

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