Seiko Cal. 4577 - 122

Seiko 4577-122

This Hand-Winding model from 1978 features a 45mm Titanium case. Powered by the 4577 caliber with 27j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-4347c432ab43]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
45mm
Case Thickness
10.0mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Silver
Jewels
27j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1978

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seikata-wm-4347c432ab43