Seiko Cal. 5637 - 290

Seiko 5637-290

The 5637-290 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5637 caliber with 25j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-1fa8976f8d29]

Also known as: Silverwave

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
9.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
100m
Dial Color
Burgundy
Jewels
25j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1976

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