Breguet Tradition Skeleton Openwork 18kt White Gold 40mm Skeleton Power Reserve 7057BB. Silver guilloche sub-dial with a gorgeous pattern texture, hand engraved on a rose-machine and Black painted Roman Numeral hour marker. Blued steel Breguet style hands. Features Power-Reserve indicators on both the front & back of the watch.

The 40mm diameter solid three-body coin-edged case, angled lugs with gold screwed bars, and rounded cupped bezel are polished. The dial is partially skeletonized and open, with a skeletonized polished finished movement, and a white guilloche off-center time dial at 12 o’clock with a silver outer reserve with black Roman numeral hour markers, minute pips around the perimeter, and blued steel Breguet hands. There is a 50-hour power-reserve indicator arch on the back of the movement. Also visible is the "pare-chute" escapement which protects the balance pivot - a delicate/fragile component - from breaking due to shock (such as a drop or a minor knock). The pare-chute allows for a smaller & differently shaped pivot which is mounted on a spring plate which in turn allows room for play - thus protecting this crucial pivot from breaking. It’s water resistant to 30 meters/100 feet, and the 12mm thick case, dial, and movement are all signed. It has an alligator leather strap with an 18K white gold tang buckle, and a scratch resistant sapphire crystal. There is a pull out winding crown, and an exhibition sapphire display case back engraved with "Breguet – Ref. 7057," and assorted gold hallmarks. 

This Breguet La Tradition 7057BB/11/9W6 has a mechanical manual winding Breguet caliber 507DR1 movement that’s constructed with 34 jewels, blued screws, a Breguet "pare-chute" anti-shock system (originally invented by A. Louis Breguet in the 18th century), and a silicon inverted in-line escapement. It includes a monometallic balance with 4 regulating screws, adjusted to six positions. There is a self-compensating silicon balance spring with a Breguet overcoil; the mechanism oscillates at a frequency of 21,600 vph (3Hz).