Seiko Cal. 4556 - 420

Seiko 4556-420

This Automatic model from 1989 features a 44mm PVD Black case. Powered by the 4556 caliber with 18j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-6dc36095f74e]

Also known as: Monster

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
44mm
Case Thickness
14.3mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Black
Jewels
18j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1989

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seikata-wm-6dc36095f74e