The cases are constructed out of grade-2 titanium, with three of them DLC-coated to achieve that dark contrasting finish. All
link four standard models feature a DLC-coated fixed aluminum tachymeter
link bezel surrounding a flat sapphire crystal. The four also feature DLC-coated
link crowns and pushers – the model with the non-coated case makes for even more contrast. Sitting inside the case and easily spotted based on the chronograph register layout on the dial is TAG's Caliber 16, based on the ETA 7750.