The Rolex Sea-Dweller Vs. Doxa's Sub 300T: A Battle For The Burly Wristed
Henry compares two historic competitors, the Rolex Sea-Dweller and Doxa Sub 300T, to determine if they still compete at a technical level.
In the 1960s, the golden age of scuba diving and sports-watch design, Doxa and Rolex co-developed a specialized technology to allow their diving watches to endure the rigors of the deep.
A consistent issue had been noted after dive watches had spent time at considerable depths: helium particles would get trapped inside these watches and force the crystals to pop off during an ascent.
This issue troubled Rolex and Doxa, who were at the forefront of dive-watch design in the 1960s, leading them to develop the helium escape valve, or "HEV" for short.
The HEV allows helium particles to escape through a valve system integrated into the case of the watch.
It would allow helium particles to escape through a valve system integrated into the case of the watch.
Author's summary: Comparison of Rolex Sea-Dweller and Doxa Sub 300T.
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