By Roberta Naas Meet some of the world's most expensive watches of 2017 thus far. Here we bring you a look at three $1 million timepieces unveiled during SIHH 2017.

By Martin Green It is hard to surpass a watch like the Bulgari Octo Finissimo Tourbillon. Its style is subtle, yet distinctly Bulgari, Roman flair combined with the finest in Swiss watchmaking. That last part, that remarkable ultra-thin tourbillon, with a height of only 1.95 mm has always been hidden behind a dial with only an opening for the tourbillon. That is now about to change with the new skeleton version of this extraordinary watch.

For Ulysse Nardin, it was the first time that they exhibited at the SIHH, but they sure made an impact. Various novelties were introduced and among them a stunning new Regatta Timer. While available as part of the regular collection featuring a white or blue dial, it was the limited edition that Ulysse Nardin makes for Artemis that caught especially our attention. Ulysse Nardin used the experience and input of two yachtsmen of the Swedish team, Loïck Peyron, and Iain Percy, to create this unique watch.

By Martin Green Time flies when having fun! That certainly goes for Urwerk, who celebrates this year its 20th anniversary and does so with the UR-T8 which they launched at the SIHH. The brand has come a long way in those twenty years, creating watches like the UR-103, UR-1001 and the EMC Time-Hunter. A signature feature of many of them are of course the three cone shaped discs indicating both the hour as well as the minutes, brought together by a stroke of genius. Of course, this complication is also present in the UR-T8, because what would a 20th-anniversary piece be without it?

By Martin Green Ever since its introduction in 2008, the Fine Watchmaking Collection has been Cartier's calling card when it comes to complicated pieces. Many of them unique and never done before. For the SIHH 2017 Cartier is expanding the collection with new models, as well as some varieties of existing models. It is not a surprise that many of them are focussed on the brand's unique, mysterious movement, that has become one of the pillars of the Fine Watchmaking Collection.

By Martin Green Ever since its creation, the Audemars Piguet has kept the Royal Oak steady on the path evolution, yet at SIHH 2017 they surprised everybody with an unexpected revolution by introducing the Royal Oak Perpetual Calendar in ceramic. Although ceramic is not a new material for the brand, crafting an entire watch and bracelet from it is.

By Roberta Naas At Salon International de la Haute Horlogerie (SIHH), we are seeing a lot of great new complications, including some superb multi-complications -- and, once agin, Vacheron Constantin does not disappoint. One of the most beautiful timepieces -- thanks to its audible elegance -- is the Traditionnelle Minute Repeater Tourbillon.

By Martin Green Roger Dubuis has declared 2017 the year of Excalibur and rightfully so! The collection is expanded with several exciting new models, of which two are the result of a new partnership with Pirelli. It might seem a bit odd, why would a watch brand team up with a tire manufacturer, even with the esteem of Pirelli. However, both brands have a lot in common, as they are dedicated to the development of new and improved materials. This is also the central theme of the two watches that they introduced based on this partnership.

Jaeger-LeCoultre and designer Marc Newson debut their latest collaboration - Atmos 568, Newson's unique take on the iconic Atmos line.

The Bugatti Aérolithe is one of the historical icons of the brand, and perhaps as well the most mysterious car ever. Parmigiani, Bugatti's watchmaking partner, found in it the inspiration for a new, innovative, flyback chronograph, full of references to this legendary car.

By Roberta Naas Vacheron Constantin has long been known for its unwavering dedication to perfection and complications. This year at SIHH 2017, the brand stands true -- unveiling a one-of-a-kind watch that is the brand's most complicated wristwatch to date (It even tops the current holder of the title "most complicated wristwatch" currently on the market). The Les Cabinotiers Celestia Astronomical Grand Complication 3600 was five years in the making and offers an incredible 23 functions via its two-sided dial

We know the past and the present of Panerai so well, yet by revealing the LAB-ID Luminor 1950 Carbotech 3 Days Angelo Bonati, the brands illustrious CEO, shows us part of the future of the brand.

Richard Mille likes to push the boundaries of the impossible further away. That is also why they are such a natural partner to the McLaren F1 team. Every time you think that they cannot go any faster, they do it again. The same goes for Richard Mille who achieved something utterly extraordinary. With the RM 50-03 Tourbillon Split Seconds Chronograph Ultralight McLaren F1, they have created a watch that weighs only 38 grams, strap included!

While Hublot is not officially part of the SIHH, they have started a tradition of releasing some novelties alongside the fair. This year is no different, and Hublot continues to do what it does best: make watches that redefine the boundaries of watchmaking in terms of technology, design, and materials. It achieves this by launching a new manufacture caliber, expanding its sapphire collection, and take the Sang Bleu collection to an even higher level by using new materials.

By Roberta Naas Marking the first time Ulysse Nardin exhibits at the SIHH in Geneva instead of in its nautically inspired exhibition space at Baselworld, the innovative brand celebrates with the unveiling of the unusual InnoVision 2 timepiece chocked with 10 innovations, already laying claim to several patents, and with half a dozen more patents pending.

Panerai has always been a brand with a very focused history. As the prime supplier to the Italian Navy, they created bold watches, which often accompanied divers on dangerous missions. For SIHH 2017 Panerai has announced two special editions