Seiko Cal. 5644 - 189

The Seiko 5644-189 represents an important milestone in Seiko's 1973 lineup. Powered by the 5644 caliber with 22j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-65c1755e5acd]

Also known as: Pogue, Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1973

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