Seiko Cal. 5637 - 433

The 5637-433 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5637 caliber with 20j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-a464b081f547]

Also known as: UFO, Crown

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1981

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