The Apple Watch has dominated the smartwatch space for the past two years, but many users are still left frustrated by the fact that the wearable does not support digital watch faces designed by third parties, which is something that Wear OS and Pebble have done for some time.

That could be set to change though, with 9to5Mac discovering code within watchOS 4.3.1 and its NanoTimeKit in particular. A specific line in the code is quite telling, stating that, "this is where the 3rd party face config bundle generation would happen."

As such, we could see some third-party developers join the ranks of other specialised or limited edition watch faces for the Apple Watch, which until now have only been restricted to certain partnerships such as Nike and Hermés.

When the announcement about this will happen is unclear, but with WWDC 2018 happening in June, it would be the ideal time to detail the change with thousands of developers in attendance.