Seiko Cal. 4531 - 240

Seiko 4531-240

This Hand-Winding model from 1971 features a 35mm Hardlex-Coated Steel case. Powered by the 4531 caliber with 19j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-9abe7a22c317]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
13.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Cream
Jewels
19j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1971

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seikata-wm-9abe7a22c317