Looking to thin the collection a little, I've decided to let this one go. It's a Sinn 144 chronograph, with sapphire crystal, ETA 7750 movement and a satin-finished stainless steel case & bracelet. Service history is unknown but it keeps time well and the chrono functions all work. It has a German day wheel. I sent the serial number to Sinn and they responded that it was from 1992. It comes without box or paperwork, so I'm pricing it for a quick sale of £825 net to me incl delivery in the UK. Shipping overseas (along with taxes etc) can be arranged at buyer's expense. It has a few dinks on the body of the watch and the surround of the crystal - unsurprisingly really as it's quite a big, heavy lump of steel. There are some desk diving scuffs on the outside of the clasp, and a slip on the case back when someone's had a go at opening it previously. Annoyingly, some of the pics might show dust or a smear on the crystal; it's clean and unmarked and the dial is clean and free from any visible spots/marks. Questions or comments, please ask.