The old watch factory Grewaco®

 

Grewaco meant Grenchen Watch Company. Grenchen was and is a small town bordering the French speaking Region of Switzerland. It traditionally houses many watchmakers' enterprises, one of them used to be Grewaco.

 

Grewaco as a watch factory was producing till A. Triebold's death in 1961.

 

 

A small Ladies' wristwatch

A water-resistant, shock-proof anti-magnetic watch. The high-end standard for this class of watches of this particular era!

A clockwork not yet mounted in its shell.

The reverse side of the clockwork - observed through the watchmaker's magnyfier, the so-called "Migros"

August Triebold at his work

small spheric watches were en vogue at a certain time

clockwork of a spheric watch

the glass is removed of a spheric watch

small pocket watch