Seiko Cal. 5648 - 637

Seiko 5648-637

This Solar model from 1974 features a 39mm Gold-Plated case. Powered by the 5648 caliber with 19j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-9227005444d7]

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
8.8mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1974

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seikata-wm-9227005444d7