Seiko Cal. 5257 - 621

Seiko 5257-621

This Hand-Winding model from 1978 features a 35mm Gold-Plated case. Powered by the 5257 caliber with 18j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-6648c0bf7e07]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
8.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
28,800 bph
Power Reserve
50 hours
Year
1978

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seikata-wm-6648c0bf7e07