Seiko Cal. 5645 - 439

The Seiko 5645-439 represents an important milestone in Seiko's 1980 lineup. With its 19mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-1c200c8e9da2]

Also known as: Sea Horse, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1980

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