This is the Roger Dubuis Excalibur Spider Pirelli. It's a magnificent name for something the Swiss watchmaker calls its first 'fully versatile Hyper Horology timepiece fuelled by adrenaline and crafted with winning motorsport tyre rubber'. 

The coloured accents around the 45mm case of the automatic skeleton watch do make it look like the very tyres Pirelli supplies to the Formula One grid after all. There's the choice of red, white and blue accents reminiscent of F1's soft, hard and full wet tyres, while the inner strap design features Pirelli's Cinturato intermediate pattern to give motorsports enthusiasts even more to geek about. And did we mention that those inlays are made from certified race-winning Pirelli tyres? 

There's no mention which races from which series the tyres are sourced from. But there's a clever 'quick release system' on the strap and crown that lets the wearer feel like they're pulling off a speedy pit stop - each element from strap to crown and bezel are interchangeable. And there'll be a distinctive click to let you know it's go time. 

As for the specs that matter, the movement is Roger Dubuis's very own RD820SQ calibre. It is made up of 166 components and 35 jewels, and packs a 60-hour power reserve. The case (including the open case back) and bezel are made of black DLC titanium while the hands are finished in a black PVD coating. 

Roger Dubuis will only make 88 pieces per colourway, which adds up to 264 units collectively. Which one do you have your eyes on?