Seiko Cal. 5639 - 667

Seiko 5639-667

The 5639-667 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5639 caliber with 19j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-35efa6107a99]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1970

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seikata-wm-35efa6107a99