Rare vintage LeCoultre ref. 2406 in an asymmetrical 14K white gold case. 
The case measures 28 mm across at the top and 22.2 mm at bottom lugs. The length is  35.4 mm.
The case appears to have never been repolished after leaving the factory. The textured areas on each side are very crisp. These were done at the factory with special tooling. The polished areas have factory finish. The winding/setting crown is original. The crystal is mineral glass and seems to be original.
I believe the printing on the dial had been redone some time in the distant past as the dial shows patina. The 3 diamond each  hour markers are original in my opinion.
The white gold hands are original. 
The lugs measure 19 mm should you want to purchase another strap.
Movement cal. 438/4CW with 17 jewels signed LeCoultre Co. 
Inside the case back there are the reference number and the serial number together with LeCoultre. 
This watch comes with a used genuine crocodile band and plated buckle.
We scrub the inner side of the band and clean with alcohol prior to shipping.
We leave it to the buyer to purchase a band to their own liking.
 If you like we can provide a generic solid 14K white gold buckle for an additional charge of $250.
The watch is running and keeping time.
If you like to have our watchmaker service the watch prior to shipping we can accommodate you, it would be an extra $150 charge.
This watch weighs 30 grams as pictured. Priced at $1990