The complete dial was freshly refurbished with good care by our dial specialist using state of the art reprinting and refurbishment techniques. The glas has very little signs of wear. Examinating it with bare eye it appears to be nearly perfect. The case is in great condition.
Last Service in 2018. The movement works perfectly and the watch is keeping time well.
A gentleman's extremely rare automatic wristwatch with centre seconds, hack feature and day and date indicator and also – it’s a prototype.
The case is made of steel, with a screw down caseback. The caseback has a centred Jaeger-LeCoultre logo and the engraving: "Prototype - Unsaleable-Hors Vente-Ausser Verkauf".
The dial is dark blue, textured, with applied luminous indexes, signed, and also with a window for day and date. Luminous baton hands accompany the dial.
The watch features a rotorwinding movement, rhodium-plated, a Glucydur balance, and an incabloc shock protection for this special balance. The watch was a prototype for Jaeger-LeCoultre automatic watches fitted with a calibre 906 movement. What stands out here is the hacking mechanism made of green molded plastic, which stops the balance wheel when the crown is pulled out. The automatic calibre 906 with chronometer standards was produced for a very short time only.
This watch was spotted together with a sister model at a Sotheby’s auction in 2017 which ended at 6200 CHF back then and also in 2015 at Dr. Cott with a low estimate of up to 5000 Euro. Only a hand full of them are known to be in collections and hardly ever one gets on the open market. We acquired this model from a collector from Switzerland and feel lucky to have it.