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Lot No. 433
Estimate  3,500 - 5,000 €
This is a lot of a former auction!

Jaeger-LeCoultre "Prototype"

, Movement No. 2206226, Case No. 1069, Cal. 906, 38 x 42 mm, circa 1970

A gentleman's extremely rare automatic wristwatch with centre seconds, hack feature and day and date indicator - prototype - with box

Case: steel, screw back with centred Jaeger-LeCoultre logo and engraving: "Prototype - Unsaleable-Hors Vente-Ausser Verkauf", original leather bracelet and original steel buckle. Dial: dark blue, textured, applied luminous indexes, signed, window for day and date, luminous baton hands. Movm.: rotorwind movement, rhodium-plated, ground, 6 adj, 21 jewels, signed, hack feature, Glucydur balance, incabloc shock protection for balance.

The watch is a prototype of 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; Vacheron Constantin ordered it as an ébauche and used it for their Chronomètre Royal models.
Case: very good
Dial: very good
Movm.: very good, capable of running

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