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.