Few names in French watchmaking carry the weight of L.Leroy. Founded in Paris in 1785 by Charles Leroy, the Maison was appointed official watchmaker to the French royal court before becoming supplier to the French Naval Ministry in 1835—a role it held longer than any other manufacturer, producing more than 2,200 marine chronometers for naval fleets across Europe. The "Leroy 01," presented at the 1900 Paris Universal Exhibition, remained the standard for highly complicated watchmaking for nearly nine decades. Acquired in 2004 by Miguel Rodríguez of the Festina Group, the Maison is now staging a deliberate return to haute horlogerie. The Osmior Elyor is its latest statement.
The Osmior Elyor is its latest statement: a 42 mm flying tourbillon with a self-winding movement with an integrated micro-rotor, developed exclusively for L.Leroy in Geneva and marking several firsts for the brand.
Things to Know About the Watch
The name "Elyor" is not arbitrary; it is an anagram of "Leroy." During the Reign of Terror of the French Revolution (1793–1794), the house used this anagram to sign its creations and avoid persecution, as the family name sounded too closely associated with royalty. That history now lends the collection its identity.
The Elyor arrives in three executions: grade 5 titanium as ref. LL311/1 with a silver dial, platinum 950 as ref. LL310/1 with an ALD-treated sky-blue dial, and 18K 5N gold ref. LL309/1 with an anthracite dial and gold accents.
Each multi-layered dial features a "Clous de Paris" hobnail motif at the center. This centuries-old guillochage technique creates a network of micro-pyramidal relief that captures and redirects light, adding depth and a three-dimensional quality to an otherwise flat surface. It is a technique most associated with classic French and Swiss dress watchmaking, and its presence here connects the Elyor explicitly to that tradition.
Applied Arabic numerals in L.Leroy's signature style appear on the smooth section of the dial, and the flying tourbillon aperture at 6 o'clock takes the center stage. The tourbillon cage is topped by a titanium bridge bearing the interlaced double ‘L’ monogram of the brand’s logo. The tourbillon functions simultaneously as the dial's focal point and its most technically demanding element. While most 60-second tourbillons incorporate the seconds indicator on the tourbillon bridge, L.Leroy has opted for a central seconds hand.
The case is tambour-shaped, measuring 42 mm in diameter and 9.90 mm thick, with a domed sapphire crystal—a total thickness of 11.88 mm including the crystal. The watch features a polished domed bezel, a fluted crown engraved with the Maison's logo, and a caseback ring with frosted segments and polished relief engravings. Both dial-side and case back sapphire crystals feature anti-reflective treatment. The watches are delivered on a black alligator leather strap with large scales, lined with small scales, tone-on-tone stitching, and an open-worked folding clasp in matching case material, itself engraved with the double "L."
The Movement
The Elyor is powered by the calibre L600, an automatic movement developed exclusively for L.Leroy in Geneva. Its 288 components include a flying tourbillon at 6 o'clock, which completes one rotation per minute and is visible through an aperture framed by a Grade 5 titanium bridge shaped into the Maison's interlaced double "L" monogram. For the first time in L.Leroy's history, the calibre integrates a micro-rotor—a gilded Inermet—tungsten-based alloy—rotor with satin-finished geometric surface decoration and a raised polished logo. The movement beats at 21,600 vph, houses 34 jewels, and delivers a 60-hour power reserve. The bridges carry a frosted finish with rhodium plating.
On the Wrist & Price
On the wrist, the L.Leroy Elyor wears its 42 mm footprint with discipline. The tambour case keeps the profile cohesive across all three material variants. This is a watch built as a wearable argument for a 240-year-old name's right to compete in contemporary haute horlogerie, and on the evidence we’re presenting here, the argument is convincing.
Sticker Price USD 118,800 for rose gold, USD 138,000 for platinum, and USD 82,800 for titanium. More info on L.Leroy here.
