What is a good AD price on the classic Omega Speedmaster? Is there more than one kind of Speedmaster, and if so, what are the differences in aesthetics, mechanics, and price?
You can purchase the 3570.50.00, otherwise known as the "Moon Watch" from an AD for about 30% off MSRP (MSRP = $3850, expect to pay $2695 new). This is the manual wind, hesalite (acrylic) crystal version, and is the most true (of the current line up) to the original.
Other versions include:
3572.50.00 (Hesalite crystal, sapphire display caseback, no longer in production)
3573.50.00 (Sapphire crystal, sapphire display caseback)
3576.50.00 (Sapphire crystal, sapphire display caseback, moonphase and date functions)
I really recommend the 3750.50.00 simply because it's most true to the original, and the hesalite crystal is just beautiful. The hesalite crystal is more prone to scratching, but you can easily polish it with polywatch, or even toothpaste.