I was on the lookout for a mint condition Sea-Dweller 4000. I saw a listing from David and Sons on Chrono24. I inquired about a possible trade for my GMT Master II Rootbeer. Within a couple of hours I got a response from Natan. Natan was very attentive and responsive to all my questions. He was polite and sent multiple pics of the watch at my request. I felt that he was very engaged throughout the entire process. He inspected my watch in trade only a couple of hours after it’s arrival to him. As soon as he did that, he was kind enough to... read full review »