Seiko Cal. 5644 - 481

This Spring Drive model from 1966 features a 44mm Hardlex-Coated Steel case. With its 22mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-06ba20eca1d7]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1966

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