Really quick. Here is one of the coolest Sinn watches out there, and really rare at that. This is the 756 UTC Dialpal, which is the 757 UTCmodel without the rotating bezel. The Diapal name refers to a diamond palette system used instead of jewels between the gears. The system is so "slippery" that the movement needs no oil to lubricate these areas. The whole idea beyond just looking cool is to allow the watch to go much longer between servicing. This watch retails for over $3,000 and is basically impossible to get in a lot of situations. The one pictured is available on eBay right now, as is at about $900 at the time of writing. Anything up to $3,500 is going to be worth it for this amazing piece of watch technology.I discussed Sinn Diapal watches more here.

Inside is a modified automatic Valjoux 7750 movement. In addition to the Diapal system, the seconds dial has been removed and a GMT hand has been added. The Diapal version has a different colored dial than the standard 756 watch without the lube free movement. The watch comes on Sinn's high quality steel bracelets a both the 43mm wide case and bracelet are specially hardened tegimented steel. I really want ones of these watches myself someday.

See Sinn 756 & Diapal watches here on eBay here.