Tech giant files patent for mechanism that converts winding into electrical power.
Interchangeable links could add features like extra storage or spare battery.
Apple's smartwatch concession closes after little more than a year inside iconic department store.
Tim Cook describes Apple Watch as one of the most popular holiday gifts this year.
Tech giant argues straps should enjoy same duty-free status as smartphones.
Google expects Apple Watch to be searched for twice as many times as the combined totals of the other 24 watches.
Apple put sport and fitness at the heart of its launch of the Apple Watch Series 2 last night.
The leaks, the rumours, the guesswork, the hopes and the fears for the Apple Watch 2.
Insider expects GPS and a barometer to be added to Watch 2 when it launches later this year.
The latest research from Strategy Analytics.