Launched in 1969, reference 1163T was made only in very low numbers as Heuer tentatively tried a small batch of 50-100 pieces with the 'Chronomatic' moniker on the dial. This model was particularly favored and promoted by Jo Siffert and it is this Chronomatic version which is the most seen in pictures of his wrist. Siffert was a Swiss Formula 1 Grand Prix double champion and winner of the Daytona and Sebring races, his first two big race wins for Porsche. His name became synonymous with the fresh blue and white dials of the model he was wearing. Heuer relied heavily on its American buyers at this time and when the Chronomatic marketing campaign received a lukewarm reception, the name was quickly dropped. As a result, models now featuring Chronomatic on the dial are the absolute Holy Grail for collectors. This is of course in part due to the low production numbers and the fact that around only ten have been found by collectors so far.
The first series reference 1163 models feature a Heuer signed calibre 11, ridged markers, unique lower placement of Autavia and square style pusher on the case. This present lot, part of the very rare first series, is not only a coveted "Siffert" model but it also features the highly sought after "Chronomatic" printing on the dial. Very rarely does a watch of the highest quality and rarity come to the open market like this and we believe it could be the last opportunity for many years to come.