Seiko Cal. 5631 - 459

Seiko 5631-459

This Hand-Winding model from 1969 features a 42mm Titanium case. Powered by the 5631 caliber with 25j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-fdbf33c94812]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
42mm
Case Thickness
10.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1969

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