The Breguet Tourbillon Automatic Regulator 5307BA/12/9V6, from the Grand Complication Collection, stands out with its regulator-style dial—hours at 12 o’clock, minutes sweeping the centre, and seconds on the tourbillon at 6 o’clock. Crafted in 18K yellow gold, the 39mm case pairs with a brown alligator strap, while the hand-engraved silver guilloché dial features Roman numerals and blued hands for a refined contrast. The sapphire case back reveals intricate hand-decoration, a nod to Breguet’s heritage. This piece was serviced by Breguet, via Wempe in Düsseldorf in February 2022. The watch is unworn since it was serviced.