Hello! For consideration today is a Speedmaster Professional with custom Thomas Preik ($125) sapphire caseback. Cosmetically, the watch is superb. The watch is free of any major dings or dents. The crystal is in good condition and I'm enclosing an unopened poly-watch kit for the first time you scratch it . The bracelet looks new too. I removed the bracelet and put it in an ultrasonic cleaner to remove any dirt/grime that accumulated. Mechanically it's in good condition. It's running at plus 5 seconds a day and has amplitude of over 270. I do not know the service history but do know it doesn't currently need one. The chrono function starts, stops and resets as it should. It clears all registers to 0 on reset and resets perfectly to the 12 (large band). It comes with boxes, books, bracelet, sapphire caseback and original caseback. Items to note: this is the exact same as the 3570.50 (42mm, 1861 movement, etc) but is actually the Apollo 17 anniversary limited edition. Whether you prefer it or not, it's moot, as you'll have the sapphire caseback The sapphire caseback was installed on 7/8 by a professional watchmaker. The last 4 pictures are of the caseback. It's currently the caseback on the watch. Also, the bracelet is able to fit 7.5-8 inches. I don't have extra links. I'm asking a VERY reasonable $2425 shipped and paypalled for the watch. If you have questions, PM me or email me at markschnake1ATgmailDOTcom