Deep Sea Alarm U.S. EditionDesign, Provenance,Rarity. A horological 'triple threat' is exactly what we have here in the Jaeger LeCoultre Deep Sea Alarm. For starters, there are two versions of the 'DSA', with this American market dial being the rarer of the two. Secondly, with less than 950 examples made over its 2 year production run for both US and European market version these are rare birds. So what you have here is a rare version, of a rare watch. (noticing a trend with