Manufacturer Rolex Caliber Number 4132 Movement Type Automatic, self-winding mechanical, chronograph In-House? Yes Chronometer? Yes (COSC + Superlative Rolex certification)...
Parachrom Blue Hairspring
Rolex’s Parachrom Bleu Hairspring is an in-house hairspring comprised of a paramagnetic alloy – made from metal, not silicon. The...
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