Breguet Ref. 3757

BREGUET REF 3757 TOURBILLON PERPETUAL CALENDAR PLATINUM Breguet, « Brevet du 7 Messidor An 9 », "Tourbillon Perpetuel", No. 3628, Ref. 3757. Made circa 2005. Very fine and rare, large, platinum wristwatch with visible one-minute tourbillon regulator, perpetual calendar with retrograde date and a platinum Breguet deployant clasp. Three-body, solid, polished, coin-edge band, correctors on the band, straight lugs with platinum screwed bars, transparent case back, sapphire crystals. Silvered solid gold, hand-guilloche with off-center brushed chapter ring with painted radial Roman numerals for the hours, dot minute divisions and the retrograde date at 12, brushed ring dials for the months at 3 and the days of the week at 9, leap year indication at 3, sector for the double 30-second graduation at 6, aperture for the tourbillon cage with brushed steel bridge carrying a blued steel double- ended seconds hand at 6. Blued steel Breguet, arrow and serpentine hands. Cal. 558, rhodium-plated and hand-engraved, 21 jewels, lateral lever escapement with one-minute tourbillon regulator with three equidistant polished steel arms, monometallic balance adjusted to six positions, self-compensating Breguet balance spring. Notes Dial, case and movement signed. DIAM. 40 mm. THICKNESS 10.5 mm.