Within the Trésor beats an entirely new movement from Omega, the caliber 8511. Unlike the rest of the watch, there is nothing vintage about it. It is a manually-winding affair with two barrels providing 60 hours of power reserve. Where the action happens though, things get a little sexier. The 8511 features a Si14 silicone balance spring set inside a co-axial escapement. Oh, and it can withstand magnetic fields of more than 15,000 gauss, a feat that thankfully goes mostly unlabeled on the dial (it’s what the “Master” indicates). The balance bridge is set apart visually thanks to its red-gold finishing. It’d be hard to miss, regardless, as the escapement is set just to the left of 6 o’clock.

The finishing on the bridge plates is a Geneva wave pattern, spiraling outward from a central jewel set into the middle bridge. Many of the internal components are hidden from view, save for the tops of the twin barrels. Overall it’s a nearly symmetrical design that brushes aside classical finishing and structures, opting instead for powerful presence and an emphasis on materials. If you enjoy the co-axial movements found in other Omegas, you’ll feel right at home here. If, on the other hand, you’re looking for something a little more delicate and intricate in execution, you might be a little disappointed. While we wouldn’t call the cal. 8511 pretty, it certainly has a soft-but-industrious nature that feels bulletproof.