Seiko Cal. 5630 - 137

Seiko 5630-137

The 5630-137 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5630 caliber with 29j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-68f3f24adf92]

Also known as: Sumo, Silverwave

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
11.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
29j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1976

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seikata-wm-68f3f24adf92