Seiko Cal. 4487 - 657

Seiko 4487-657

This Hand-Winding model from 1970 features a 41mm PVD Black case. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-91494db3f4c5]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
41mm
Case Thickness
14.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
120m
Dial Color
Cream
Jewels
28j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1970

Related Models

seikata-wm-91494db3f4c5