Seiko Cal. 5637 - 803

Seiko 5637-803

The 5637-803 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5637 caliber with 36j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-f67685b64f42]

Also known as: Panda, Emperor

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1979

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