Watch Dogs will release on November 21, 2013, according to a pulled listing on Dutch retailer Gamemania.
The retailer allegedly posted the release date alongside details of the game's Special Edition over the weekend, revealing that the unannounced edition is set to contain the "Breakthrough Mission Pack", a bonus pack containing an additional single-player mission and the 'Vehicle Expert Pack', which includes a set of free vehicles.
The listing has since been removed.
The Collector's Edition is alleged to include an exclusive figurine of lead character Aiden Pearce, "Silver, Gold & Platinum DLC", an artbook, steelbook, interactive map, badges, four augmented reality cards and the game's soundtrack.
Customers who pre-order Watch Dogs from Amazon, meanwhile, will receive the game's "Multiplayer Pack", a pre-order bonus containing two additional skins, two "$$$ Perks" and two Faction Tags.
Ubisoft has yet to officially announce a release date for Watch Dogs, or reveal details about the game's Collector's or Special Editions.
If accurate, however, the date would pin Watch Dogs for release three weeks after Ubisoft's other top Christmas title - Assassin's Creed 4: Black Flag - goes on sale.
The release timing could also drop a hint as to when to expect next-gen consoles. The game is expected to be available around the time of PlayStation 4's launch, with a version of the game also in development for Microsoft's next-gen Xbox.
Source: Wog.ch, Gamemania.nl (via WatchDogsForum.net)