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BREGUET. A FINE PLATINUM PERPETUAL CALENDAR TOURBILLON WRISTWATCH WITH RETROGRADE DATE
SIGNED BREGUET, MODEL CLASSIQUE, CASE NO. 6736 I, MOVEMENT NO. 642, REF. 3757, CIRCA 2001
With lever movement, finely engraved nickel-finished movement plate inscribed Tourbillon Breguet No. 642, Brevet du 7 Messidor An 9, 21 jewels, the engine-turned silvered dial with visible one minute tourbillon carriage with mono-metallic compensation balance at 6, Roman numerals on silvered chapter ring with blued steel Breguet hands combined with retrograde date indicated by blued steel serpentine hand at 12, two silvered subsidiary dials for day and month combined with leap year indication, in large circular case with milled band, screwed lugs, glazed display snap on back, together with a platinum Breguet deployant clasp, case, dial and movement signed
40 mm. diam.