Under Rolex international service warranty until January 2021.  In our opinion the SD 4000 is one of the best investment sports pieces out there. Only made for 3 years, this rare reference 116600 features a unique 40mm case, bezel, and dial, infact Rolex have never invested so much R&D in such a short production piece. Waterproof to an incredible 4000ft, fitted to a robust steel Oyster bracelet with excellent Glidelock clasp including built in dive extension link), this UK retailed example is in perfect conditon. Totally complete with its Rolex box, booklet, swing tags, Rolex UK service history and Rolex warranty card.