Tennis player Gaël Monfils spotted wearing a Breguet

Gaël Monfils has a reputation on the ATP Tour not just for his acrobatic shot-making but for his impeccable taste in horology, and this wrist shot — likely taken courtside or backstage at a tournament — delivers one of his most significant sightings yet. The watch in question is a Breguet Classique Tourbillon with a Grand Feu enamel dial, a combination that sits at the very pinnacle of what the Vallée de Joux can produce.

The Breguet Classique Tourbillon Extra-Plat, reference 5377, is built around Calibre 558, a manually wound movement measuring just 3mm in height — a technical tour de force that keeps the overall case thickness remarkably slim despite housing a full flying tourbillon at 6 o'clock. The tourbillon cage completes one revolution per minute and serves as the seconds indicator, a configuration Abraham-Louis Breguet himself patented in 1801 to counteract gravitational errors in pocket watches. The yellow gold case, crisp rectangular lugs, and gold crown are all consistent with the BA (yellow gold) variant of the reference.

What elevates this particular piece into rarefied territory is the Grand Feu enamel dial. Applied by specialist craftspeople using a technique largely unchanged for centuries, the white enamel is fired multiple times in a kiln, with each firing risking crazing or cracking. The result — that luminous, glassy white surface bearing Breguet's signature blued-steel hands and Arabic numerals in the house's distinctive typeface — is irreproducible by any industrial method. The text at the dial's lower edge, "Swiss Émail Grand Feu," confirms the provenance.

Among serious collectors, the Classique Tourbillon Grand Feu commands respect that transcends its price point. It represents a direct lineage to Breguet's founding philosophy: mechanical ingenuity married to decorative arts. Unlike sportier tourbillons from rival maisons, this reference makes no concessions to modernity — it is a dress watch in the truest sense.

Monfils, who has previously been spotted in Patek Philippe, Richard Mille, and Audemars Piguet, signals with this Breguet that his collection spans the full spectrum of haute horlogerie. On the grey market, examples of this reference trade at a significant premium when paired with the enamel dial, reflecting genuine scarcity and sustained collector demand.