Early Eterna manual wind cal 600S in a Staybrite clamshell case, ø 29mm x 10.4mm.

The production date for this watch is 1938 and it features a fine and regular patina on the dial. The steel case is in excellent condition.

As a pre-war watch, the size is therefore typical for a men’s watch of the period. We have also listed this in the women’s section as the size is now a popular size for women, too.