Seiko Cal. 5645 - 909

The 5645-909 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5645 caliber with 20j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-53ded42bf7a4]

Also known as: Bullhead, Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1973

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