Paris-based fashion retailer Colette is teasing a “one day only experience” with Apple, to be held September 30th from 11:00 AM to 7:00 PM local time. While no other details are available, it seems plausible that this may involve the recently-debuted Apple Watch, particularly since Apple has been working with the fashion industry to style and position the device as a fashion accessory. The invitation image clearly resembles the Apple Watch…