Hello and welcome. I would find it quite unhealthy for anyone to make such a suggestion on this or any other forum. Quite frankly, as someone who IS in SoCal, I would not know of anyone who is currently selling replica watches locally. There used to be two that I knew of and had done business with. But guess what happened to them? They were shut down and faced some very difficult legal challenges.
There are plenty of safe and trusted dealers right here on this forum that will go out of their way to make any purchase pleasant. Also know that the US Customs office in LA seems to be moving quite nicely recently.
I ordered a watch three weeks ago on a Saturday from China, it arrived at my house on Wednesday in San Diego.
Take your time, determine EXACTLY what version of the U Boat you would like. Then read the reviews and see what dealers it has been bought from. Then place your order (with a trusted dealer) and wait for it to arrive. THEN take pics, write a review and let us all know how it turned out for you.
AND, I will be putting together another SoCal G2G in the next few weeks (probably looking at Mid September) and you are more than welcome to attend. We always have alot of fun, and MANY people bring watches along to trade/sell.
PS: Ive been to Santee Alley with someone who "knew the area"... It was a COMPLETE and TOTAL waste of time and money to drive up there. ALL that was available were junk watches. I mean that! They made even the $88 watches that some of our trusted dealers look like HIGH END MODDED WATCHES.
Most of what was available were not even replica's of real models. I saw more fantasy watches on that afternoon than I though existed.
CBR