Seiko Cal. 6623 - 590

Seiko 6623-590

This Hand-Winding model from 1965 features a 36mm Stainless Steel case. Powered by the 6623 caliber with 26j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-00cef3a547fd]

Also known as: Baby Tuna, Emperor

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
8.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1965

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