Double branded Omega/Tissot vintage chronograph.

Rare 33.3 caliber.

This watch has one of the rarest case configuration housing the 33.3 caliber.

It is a triple step lunette calatrava case in stainless steel with a remarkable 40mm size.

The watch, as it should, is double branded on dial and caliber and branded Tissor only inside the caseback.

The dial is a black original one with oversized numerals.

Very good conditions also considering it is a watch from the early 40s.

Very few pieces in this configuration are known and appeared in the market.