Seiko Cal. 5644 - 173

The Seiko 5644-173 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-1e0c2e1b11ee]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1968

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