Longines Heritage Steel L7.012.2.21.1

I'm off to the States today...
This is my third trip back since late February. I took only my Day-Date on the last two trips, and though it was a good choice, I missed having at least one other watch to wear during each trip. Maybe I should take a different watch this time?My wife thinks I'm nuts to think about this stuff; and she's right; but since I know all of you are similarly nuts, too, I'll mull over this in pubic with you.I'm thinking about my GMT IIC for the 12 hour flight and the 13 hour timezone change I'll have all week; but, then again, I'd hate to leave my currently favorite Daytona at home; but I'll be in business attire all week, so the Day-Date seems right; so what do I do? I can't take all of them; can I??? Such is the dilemma of the confirmed WIS.Anyone know of any good watch dealers I should visit in the Charlottesville, Virginia area?

Omega Speedmaster 3570.50
Hi everyone,I'm new to the forum and looking to buy my first watch.I've been doing a lot of research and know I understand the whole AD vs grey market dealer.I'm looking to buy an Omega Speedmaster 3570.50I've seen these for around $2,700 online. I went to an AD today (Torneau) in Atlanta and their price is $4,000 including tax (they gave me a 10% discount).I understand the importance of having manufacturer's waranty, but this price difference is pretty significant. If something happened to the watch, I'm almost sure I would still be saving money if I go with the online option.Any recommendations you could give me?Thanks so much.

Vintage Ω score #2!
This one is another ss Seamaster that's a little less than normal - a 751 chronometer. To set the table, have a look at Desmond's article on these: snapdrive/files/47667...nSeamaster.pdfSince I sold the "C" cased caliber 751 gold capped Constellation to Scottie last year, I wanted to replace that movement. I really thought it would be another Connie in solid gold, but when the chance to buy this from a very reputable collector came up I had to pounce - especially at the more than fair price he asked. It's fully serviced as of last year, and just needs a little touch up on the case and hands which Sam will knock out when I take it to him in a week or so. The case is pretty crisp, and the dial is spectacular.but I'll let the pictures do the talking.Naturally, a wrist shot is in order!There was a discussion on these over on WUS too if you feel like reading the thread: Omega Seamaster Chronometer Cal 751 - Watchuseek, world's largest & highest trafficked Watch Forum siteIf you're w

Calling All Watchmakers--Need an Opinion
I recently picked up a 50's era Enicar, manual wind 17 jewel (I think it's a 1064 caliber). Anyway, the watch runs finebut only if it's lying flat. Tip it up to about 45 degrees or so and it stops. Just before it stops running, there is a sound like something clunking into, or out of, place. Any ideas what's wrong and is it an expensive repair?

What does 30B7879 following the model # mean?
What does the R mean in front of the model #, and 30B7879 following the model # mean in the picture below? It is from a GMT-Master II. I have also seen 30B9315 before.I know the A,B,N (coke, pepsi, black) following the model# describes the bezel insert.Thanks all!