The tourbillon movement features hand-chamfering, and a complete architectural overhaul and reworking in order to blend with the case link seamlessly. A 110-hour link power reserve meets modern standards, while the bridges are link all engraved by Bernard’s mentor Alain Lovenberg. A not-so-subtle nod to an old-school technique. Lovenberg is widely considered the last of his kind; he’s world renowned for his engravings on shotguns, knives, pens, and jewelry.