Article of the week
Louis Erard Unveils the Limited-Edition Gravée Main

Since 2021, Louis Erard has been redefining the boundaries of Métiers d’Art, from Grand Feu enamel and guilloché to wood marquetry, and soon, gold wire inlay. Now, Gravée Main opens a new chapter, paying tribute to one of the oldest crafts in watchmaking hand engraving.
Gravée Main represents a new milestone in Louis Erard’s Métiers d’Art series. This limited edition of 99 unique timepieces places hand engraving at center stage, with every metal element entirely engraved and finished by hand, a meticulous process that requires more than 50 hours of work. 

Introducing Richard Mille Unveils the New RM 75-01 Flying Tourbillon Sapphire

Three new releases crafted entirely from sapphire crystal

Richard Mille continues to blur the lines between horology and modern architecture with the new RM 75-01 Flying Tourbillon Sapphire. As its name suggests, the case is crafted entirely from sapphire crystal and draws inspiration from Gothic art.

Measuring 32.90mm in width and 46.75mm in height, the sculptural case required over 1,000 hours of machining and polishing, an impressive testament to the extreme technical demands of working with such a notoriously challenging material. The caseback, also fully made of sapphire in either lilac pink, sapphire blue, or clear sapphire offers a view of the movement and maintains a water resistance rating of 30 meters.

At first glance, the dial of the RM 75-01 resembles a mechanical landscape more than a traditional watch face with its skeletonized design. It’s framed by a red gold flange and accented with polished steel indices treated with Super-LumiNova, enhancing visibility in low light. The layout includes central hours and minutes, a function selector at 3 o’clock, and a skeletonized 72-hour power reserve indicator at 11 o’clock. The true centerpiece, however, is the flying tourbillon at 6 o’clock.

Powering the watch is the CRMT5 calibre, a manually wound movement that operates at 21,600 vibrations per hour (3 Hz). Built with Grade 5 titanium bridges and a PVD-coated baseplate, it delivers both robustness and lightness. Traditional hand-finishing techniques, such as polishing, sandblasting, and anglage, pay tribute to the craftsmanship behind the futuristic aesthetic. Even the gears are optimized with a pressure angle of 20° to improve torque transmission. Each watch is paired with a rubber strap, and pricing is available upon request.

For more information, visit Richard Mille’s official website.

Technical Specifications: Richard Mille RM 75-01 Flying Tourbillon Sapphire
  1. Case: Sapphire crystal, caseback (lilac pink, sapphire blue, or clear sapphire)
  2. Dimensions: 32.90mm (width) x 46.75mm (height) 
  3. Water Resistance: 30 meters
  4. Dial: skeletonized, red gold flange, polished steel indices treated with Super-LumiNova, central hours and minutes, function selector at 3 o'clock, skeletonized power reserve indicator at 11 o'clock, flying tourbillon at 6 o'clock
  5. Movement: CRMT5 calibre, manually wound
  6. Functions: Hours, Minutes, Power Reserve Indicator, Function Selector
  7. Frequency: 21,600 vph (3 Hz)
  8. Power Reserve: 72 hours
  9. Bracelet/Strap: Rubber strap
  10. Price: Upon request

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