In 1996, Rolex introduced two-tone (stainless steel and 18-carat yellow gold) to the lady's and mid-size line.

[1] In 1997, Rolex released a Yacht-Master made of stainless steel and platinum, wherein the bezel and dial are made from 950 platinum while the case, bracelet and crown, are in stainless steel.

[3] The difference between the two models being the new movement found in reference 168623, and the new solid 18K gold center links found on the new, heavier bracelet (the reference 68623 bracelet having hollow center links.)

All Rolex Yacht-master models have a water resistance rating of 100 metres [330 ft].

[7] and a triple-locking winding crown system taken from Rolex’s famous family of saturation diving watches.