Seiko Cal. 5220 - 377

This Hand-Winding model from 1978 features a 42mm Stainless Steel case. With its 20mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-5c67d0f6ad68]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1978

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