Housed in a 34 mm Oystersteel Oyster case with a domed bezel, the 124200-0011 is built around Rolex's monobloc middle case construction with a screw-down case back and screw-down Twinlock winding crown, providing water resistance to 100 metres. Scratch-resistant sapphire crystal protects the medium blue dial, which features a Chromalight display offering long-lasting blue luminescence for dependable legibility.
Powering the watch is the Calibre 2232, a perpetual mechanical self-winding movement from Manufacture Rolex. It runs a bidirectional Perpetual rotor, a Syloxi silicon hairspring with patented geometry, and Paraflex shock absorbers, delivering a precision of -2/+2 seconds per day after casing and a power reserve of approximately 55 hours. The movement carries Superlative Chronometer certification, reflecting COSC testing followed by Rolex's own in-case certification.
The watch is fitted with an Oystersteel Oyster bracelet composed of three-piece solid links and secured by a folding Oysterclasp with an Easylink 5 mm comfort extension link, allowing for easy on-wrist adjustment.