Breguet. A Rare and Fine Platinum Perpetual Calendar Tourbillon Wristwatch with Retrograde Date and Leap Year Indication

Breguet. A Rare and Fine Platinum Perpetual Calendar Tourbillon Wristwatch with Retrograde Date and Leap Year Indication
Signed Breguet, Ref. 3757, No. 9608, Circa 2001
Cal. 558, movement plate inscribed Tourbillon Breguet No. 755, Brevet du 7 Messidor An 9, 21 jewels, one-minute tourbillon carriage, silvered engine-turned dial, polished chapter ring, Roman numerals, retrograde date indicated by blued steel serpentine hand, two subsidiary dials for day and month with leap year indication, large platinum circular case, coin-edge band, sapphire crystal snap on case back, platinum Breguet deployant clasp, case, dial and movement signed
40mm diam.