Walking down the streets of Buenos Aires I came across this:

 

Avenida Corrientes y Avenida 9 de Julio ?

 

They've been involved with the Olympics since pretty much the beginning. I believe the first Omega chronographs were designed with sport timing in mind

 

Crerrito y Diagonal norte. Pero cruza Corrientes y 9 de Julio.

 

Is it possible that this building is the former head office of " El Trust Joyero Relojero"?

 

No, the current location of the old "El Trust Joyero Relojero" building is this:
https://goo.gl/maps/GwQy4JYg3i32
(Where the McDonald's building is located)