Seiko Cal. 5640 - 129

Seiko 5640-129

The 5640-129 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5640 caliber with 19j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-22abc4880556]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
15.8mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
90m
Dial Color
Silver
Jewels
19j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1973

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seikata-wm-22abc4880556