Seiko Cal. 5644 - 788

The Seiko 5644-788 represents an important milestone in Seiko's 1983 lineup. Powered by the 5644 caliber with 19j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-6b3cf06eb716]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1983

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