Watches Rolex Sea-Dweller versus Deepsea: A US Buyer’s Rational Market and Condition Comparison Immediate Answer The Sea-Dweller (ref. 126600) and Deepsea (ref. 136660) are fundamentally different engineering approaches to professional dive watches, despite superficial visual similarity. The Sea-Dweller balances extreme depth capability (1,220 Dusan Tadic4 hours agoKeep Reading