Seiko Cal. 4577 - 921

Seiko 4577-921

This Hand-Winding model from 1980 features a 40mm PVD Black case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-802bba611b88]

Also known as: Samurai, Sumo

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
40mm
Case Thickness
8.2mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
200m
Dial Color
Navy
Jewels
30j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1980

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seikata-wm-802bba611b88