Breguet 7597 (Pre-owned - Good) — USD 31,870 on eBay

The Breguet Tradition 7597 Quantième Rétrograde is a contemporary interpretation within the Tradition collection, which draws inspiration from Abraham-Louis Breguet’s 'souscription' and 'tact' watches. This model showcases the movement's architecture on the dial side, a hallmark of the Tradition series, emphasizing the mechanical artistry. This reference features a 40mm case, typically crafted from white gold or rose gold, housing the self-winding Caliber 505Q. This movement incorporates a retrograde date display positioned between 9 and 3 o'clock, a silicon balance spring, and an inverted in-line lever escapement. The power reserve is approximately 50 hours, and the watch is water-resistant to 30 meters. The dial for the hours and minutes is offset at 12 o'clock, often in silvered gold with a hand-guilloché 'Clous de Paris' pattern. The 7597 is significant for collectors who appreciate Breguet's historical innovations presented with a modern aesthetic. Its open-worked design allows for direct observation of the movement's intricate mechanics, including the balance wheel and escapement, making it a focal point of horological discussion and appreciation.