L.Leroy - Osmior Monopusher Chronograph

LL100_1The Osmior line takes its name from an ancient metal alloy composed mainly of gold and with a colour similar to platinum, used in the past by L. Leroy for large complications. Today, this collection, inspired by classicism and refinement, offers refined timepieces with large and small complications. The Monopusher Chronograph adopts an automatic movement with column-wheel chronograph functions. It is available in 4N18 pink gold and in non-rhodium-plated white gold.


Technical specifications


Automatic calibre. L411.1

- Diameter: 30.00 mm (13.3″') - Total thickness: 6.00 mm

- Frequency: 28'800 a/h (4Hz)

- 48 Rubies

- Power reserve: over 50 hours (double barrel)

- Decoration of the 'Côtes de Genève' bridges

- 22-carat gold central oscillating weight and 18-carat white gold segments

- Officially certified chronometer by the Besançon National Observatory


Case and dial characteristics

- Case diameter: 41.00 mm

- Total watch thickness: 11.70 mm

- Waterproof to a depth of 50 metres (5 atm)

- Scratch-resistant sapphire crystal on dial and back

- Single-pusher crown

- Available in 4N18 rose gold and non-rhodium-plated white gold (150PD)

- Handmade guilloché dial

- Steel, thermally blued or gold-plated hands

- Genuine alligator strap (upper part and inner lining) hand-stitched

18K gold pin buckle or déployant (optional)


Available variants:

Rose gold with silvered, champagne or black dial

White gold with silver-plated dial