Seiko Cal. 5644 - 609

The 5644-609 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5644 caliber with 20j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-1ffab0a08217]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1976

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