Seiko 5

A cheap self-winding watch with five features, sold in millions.
The five stand for self-winding, day and date, water resistance, the crown at four and a tough case. The Seiko 5 made mechanical watches cheap for a broad public.
Materials: Stainless steel; self-winding movement
Manufacture: Made in Japan; the crown often sits at four.
The small shield with a 5 on the dial.
The day and date in a window.