Rolex Sea-Dweller – The Ultimate Professional Dive Watch The Rolex Sea-Dweller is an iconic diving watch that sets the standard for professional underwater exploration. With an incredible water resistance of up to 4,000 feet (1,220 meters), this robust timepiece is built to perform under the most extreme conditions, making it the ultimate tool for divers. Whether you're. Key Features: Case Size: 43mm, made with Oystersteel, a corrosion-resistant alloy for extreme durability Water Resistance: 4,000 feet (1,220 meters), ideal for professional divers Movement: Rolex Caliber 3235 – Powered by a self-winding automatic movement with a 70-hour power reserve Helium Escape Valve (HEV): Essential for deep dives to release built-up gases, ensuring the watch remains intact Bezel: Cerachrom bezel with engraved numerals to keep track of dive time Dial: Black dial with luminescent markers for maximum visibility at great depths Crystal: Sapphire crystal designed to withstand extreme pressure and harsh underwater environments Bracelet: Oystersteel bracelet with Glidelock clasp for an adjustable and secure fit Date Display: The Cyclops lens above the 3 o’clock position for easy date reading Robust Design: – Purpose-built for professional divers with a classic aesthetic