Seiko Cal. 5644 - 470

This Hand-Winding model from 1971 features a 41mm Stainless Steel case. With its 18mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-e3d7fdfc746d]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1971

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