BREGUET, TOURBILLON, NO. 4/7, PLATINUM
Breguet, ''Brevet du 7 Messidor An 9'', Tourbillon No. 4/7, No. 1501.
Made in a limited edition of 7 pieces in the 1990's.
Very fine and rare, platinum wristwatch with visible one-minute tourbillon
regulator with a white gold Breguet buckle.
Three-body, bicolor, polished, reeded band, transparent back,
platinum case, straight lugs, sapphire crystals
Guilloché silver with painted black radial Roman numerals on an
off-center plain reserve showing the Breguet secret signature, visible
tourbillon cage on the 6. Blued steel Breguet hands
Cal. 558, engraved along with the inscription "Brevet du 7 Messidor
An 9", 21 jewels, lateral lever escapement, monometallic balance adjusted
to 6 positions, self-compensating Breguet balance spring.