Seiko Cal. 5263 - 266

Seiko 5263-266

The 5263-266 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5263 caliber with 18j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-3373444bbaa7]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
10.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Green
Jewels
18j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1969

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