Seiko Cal. 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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