What does “Oysterflex” mean?

The Oysterflex is Rolex's rubber-like bracelet, introduced in 2015 on the Everose gold Yacht-Master. It isn't a simple rubber strap: inside are flexible metal blades over-moulded in black elastomer, with cushions on the underside to keep it stable and comfortable on the wrist. It is used mainly on precious-metal models, such as Yacht-Master, Daytona and Sky-Dweller references.

Buyers like the Oysterflex for its comfort and for the sportier look it gives a gold watch. The elastomer can show wear, nicks or cracks over time, especially at the edges and near the clasp, and the bracelet is specific to its model, so check its condition and confirm it is original to the watch. A worn Oysterflex can be replaced by the brand, so its condition is usually priced as a cost to put right rather than a reason to avoid the watch.

Example: 'Yacht-Master on Oysterflex, strap in good condition, no cracks.'