Friend and I have been working on an automated online watch price guide and marketplace (not much on the marketplace side yet, we're figuring that out) - [secondhander.com](www.secondhander.com)
Started off as just a friend's side project that he purpose-built for flipping watches. He got tired of researching watches and/or just sticking to the few particular models he knew well, so started automating the process a bit.
Slowly has grown into this. It's still hyper-focused on the watch enthusiast crowd and it almost requires a knowledge of what you're trying to search for. Next phase is going to include a more investigatory type search for the more casual user.
It has some quirks for sure, but I wanted to share the initial 'beta' (that's code for something I can't call done, ha). Searching from mobile is brutal right now, but that'll be fixed soon.
Watch person highlights: - over 40,000 watches indexed and priced and growing daily - real time ebay, greymarket, and online secondary market retailers indexed - sold ebay listings and forum history - most modern rolexes indexed by both the over-arching model, and also broken down by serial series (e.g. you can check an 116610 overall or break it down by G serial/Random serial etc)
Still kinda rough: - cross-browser work, it's ok but needs some focus - Search selects, especially on mobile (going to destroy the js replacement on mobile to use native control) - Weeding out duplicates (Catching some, but not all on the forum feed) - A few rolex mis-indexes - Patek and PAM needs a little tweaking