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Who knows, I got it used from Watch Guru! But it's vgc, serviced, with history, bracelet and strap. Prices dipped to about 1 grand, but recently they seem to be 2+. No idea why. It's really more of a Sinn than a B&R. Closely related to the Sinn EZM2, but unlike the Sinn it's rated for 11100 metres.
Maybe the value got a bump from the Rolex Deepsea Challenge? If you insist on going to the bottom of the Mariana Trench, the Hydromax is a bit more wearable. You can fit nearly four and a half of them inside a Deepsea Challenge.
One careful owner…?