Seiko Cal. 5644 - 986

The Seiko 5644-986 represents an important milestone in Seiko's 1980 lineup. Powered by the 5644 caliber with 26j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-1dbfaf529693]

Also known as: UFO, World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1980

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