Seiko Cal. 5644 - 166

This Spring Drive model from 1999 features a 34mm Titanium case. Powered by the 5644 caliber with 20j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-90330b6d80d7]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1999

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