Seiko Cal. 4531 - 851

Seiko 4531-851

This Automatic model from 1979 features a 39mm Hardlex-Coated Steel case. Powered by the 4531 caliber with 25j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-4450102ab188]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.2mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Cream
Jewels
25j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1979

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seikata-wm-4450102ab188