Seiko Cal. 5664 - 522

Seiko 5664-522

This Hand-Winding model from 1978 features a 37mm PVD Black case. Powered by the 5664 caliber with 30j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-628ffaefdb7a]

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
37mm
Case Thickness
10.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
70m
Dial Color
White
Jewels
30j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1978

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