Released in 2020 as a nod to the 15th anniversary of MB&F and Moser’s relaunch, the Cylindrical Tourbillon was released in collaboration with these two powerhouse independents. A ‘Moserised’ version of an MB&F LM Thunderdome, the Cylindrical Tourbillon features an incredible dome-shaped sapphire crystal that allows the timepiece’s sapphire dial at 6 o’clock to stand raised from the base of the dial at 40 degrees to face the wearer. As the dial is transparent it provides a wonderful view of the mechanics responsible for the minutes and hours while also allowing the centrepiece complication to stand proudly on display. The timepiece’s eponymous complication, the Cylindrical Tourbillon features exactly that, a cylindrical tourbillon – a concept MB&F had brought to life some years before. Fitted with a cylindrical balance spring designed by Moser’s sister company, Precision Engineering AG, the Cylindrical Tourbillon is a technical marvel with mechanics very rarely seen in the watchmaking industry. Beyond its engineering, the stainless steel Cylindrical Tourbillon ref. 1810-1201 that we have here features an incredibly vivid burgundy fume dial and is, like the other variants, limited to just 15 pieces.