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The Rendez-Vous Night & Day is a Jaeger-LeCoultre women's automatic watch. The key part sits at 6 o'clock: a disc that turns once every 24 hours, showing a sun for daytime and a moon with stars for night. Replica versions copy the case shape, the dial layout, and the bezel setting. They do not use a Jaeger-LeCoultre movement. The gold color is plating in most listings, and the stones are not diamonds.

Genuine specifications

  • Maker: Jaeger-LeCoultre, Le Sentier, Switzerland.
  • Collection: Rendez-Vous, launched 2012.
  • Movement: Jaeger-LeCoultre calibre 898 family, automatic winding, power reserve about 40 hours. Confirm the calibre on the caseback.
  • Display: hours, minutes, and the 24-hour day/night disc. Check the reference for a date aperture.
  • Case: stainless steel or 18k pink gold. Diameters run from 27 mm to 38 mm across references.
  • Crystal: sapphire. Caseback: sapphire on most references.
  • Water resistance: 30 m to 50 m on most references.
  • Strap: alligator leather, folding clasp or pin buckle.
  • Bezel: plain, or diamond-set on gem references.

What differs on replica versions

  1. Movement. Replicas run third-party automatic calibres, often Asian-made. Beat rate and finishing differ from the calibre 898.
  2. Metal. Gold-color cases are 316L steel with plating in most listings. The plating wears at the lugs and crown.
  3. Stones. Gem-set bezels use cubic zirconia or synthetic stones, not diamonds.
  4. Day/night disc. Many replicas print the sun and moon on foil. Edges look flat next to a brushed metal disc.
  5. Weight and thickness. Case thickness runs 0.3 mm to 1 mm greater than the original. Gold-color versions weigh less than solid gold.
  6. Markings. Caseback engraving depth, reference numbers, and the “Swiss Made” print under the crystal are common tells.

Checkpoints before buying

  • Measure case diameter with calipers. Ignore the listing text.
  • Confirm crown position at 3 o'clock and the set sequence: time first, then the day/night correction if the movement has one.
  • Check that the disc at 6 o'clock lines up with the hour hand at 6 a.m. and 6 p.m.
  • Ask which movement sits inside and if the crystal is sapphire or mineral glass.
  • Request movement photos and a close photo of the caseback engraving.

Limits

No replica is the original watch. Factory service, warranty, and resale value do not transfer. Jaeger-LeCoultre service centers do not accept replicas for repair. Customs agencies in the US, the EU, and Switzerland can seize counterfeit goods under national trademark law. Swiss watch industry reports count counterfeit seizures in the millions of units per year. Figures for the replica Rendez-Vous Night & Day market itself are not published.