Seiko Cal. 4520 - 957

Seiko 4520-957

This Automatic model from 1969 features a 40mm PVD Black case. Powered by the 4520 caliber with 31j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-f0da1c9d729e]

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
30m
Dial Color
Burgundy
Jewels
31j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1969

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