Seiko Cal. 5644 - 724

The Seiko 5644-724 represents an important milestone in Seiko's 1990 lineup. Powered by the 5644 caliber with 20j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-f4c8cd07e970]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1990

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