Seiko Cal. 4578 - 974

Seiko 4578-974

This Hand-Winding model from 1984 features a 38mm PVD Black case. Powered by the 4578 caliber with 17j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-6960e00490b0]

Also known as: Sumo, Silverwave

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
38mm
Case Thickness
13.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
160m
Dial Color
Green
Jewels
17j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1984

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seikata-wm-6960e00490b0