The Tuxedo - This Datejust is one rare watch. Stone dials in general appear in 5-digit Day Date references, none of them are known to ever have been fitted into 4-digit Day Date references. The only 36mm reference fitted with a stone dial is the 1601 and like on the Day Date examples, the stone dials were only fitted in precious metal cases. Dated to 1978 this seems to be among the last Onyx 1601s ever made. The case is in fantastic condition and seems to be unpolished with strong and well defined lugs. The President bracelet with invisible clasp is tight and doesn't show much wear from age, the clasp matches perfectly with the serial number.  The main highlight is without a doubt the dial. The original Onyx dial is in excellent condition, not showing any wear from age. The surface is immaculate and free of any chips, hairlines or cracks. These Onyx Datejust really don't come up much anymore and we are happy to offer this one for sale, it is for sure among the best examples we have ever had.