Seiko Cal. 5699 - 640

Seiko 5699-640

The 5699-640 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5699 caliber with 34j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-51b4a41feb55]

Also known as: Tuna, Bullhead

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
41mm
Case Thickness
14.9mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
60m
Dial Color
Cream
Jewels
34j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1979

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seikata-wm-51b4a41feb55