2236

About the Rolex 2236

Introduced in 2014 in the Pearlmaster 34, it is a 20 mm automatic with a date, 31 jewels, a 55-hour reserve and a beat of 28,800 vph, certified by the COSC and then tested again by Rolex after casing to the Superlative Chronometer tolerance of two seconds a day. Its distinction is the Syloxi hairspring: silicon, immune to magnetism, etched to a patented geometry that keeps the spring concentric in every position, and paired with Paraflex shock absorbers. The larger Rolex calibers kept the Parachrom alloy spring; Syloxi did not reach a men's movement until the 7140 of 2023. The 2236 piece sets out that history.

In the library it powers 488 Datejust 31 references, the seven-digit 2782xx generation of 2020, 399 Lady-Datejusts of the 2791xx generation of 2015, 15 Pearlmasters and 5 Yacht-Master 37s.

The 2235 is the 48-hour movement it replaced, the 2232 its no-date sibling for the Oyster Perpetual, and the 3235 its counterpart in the 36 mm and 41 mm cases.