The Rolex Datejust reference 126300 is a 40mm timepiece in Steel presented in used condition, with a Custom Silver Diamond dial, Custom Diamond bezel, Jubilee bracelet. This piece is customized — aftermarket-modified (setting or dial added outside the manufacturer); not original factory condition. Supplied with its original papers. Every watch is inspected and authenticated by our specialists before it is offered, so you can buy with confidence.
Choosing a Datejust means weighing size first: 26mm and 31mm for smaller wrists, the 36mm unisex benchmark, or the sportier 41mm. Material follows, from Oystersteel through two-tone Rolesor in yellow gold or Everose to solid gold. Each combination carries its own price logic. We handle authentication in-house and talk you through what to verify, so the reference you pick is the one you can trust. Read the full Datejust buying guide ›
Recognition is near universal for Rolex, and that reputation rests on real engineering: waterproofing, self-winding movements, and date displays developed at the Geneva manufacture Hans Wilsdorf founded in 1905. The brand sets the benchmark for mechanical watches and now reads as a financial asset class too. We check the Oyster case and Perpetual movement closely, because steel sports references like the Daytona regularly clear retail prices. Browse all Rolex ›
Rolex · 126300
Customized — aftermarket-modified. Diamond setting or dial added outside the manufacturer; not original factory condition.
PapersA 40mm Steel Rolex Datejust with a Custom Silver Diamond dial, Custom Diamond bezel — authenticated and ready to wear. Carries an aftermarket diamond setting — not original factory condition.

