The 126000 is the 36 mm Oyster Perpetual, introduced in 2020 together with the 41 mm 124300. The 36 mm size is the classic Rolex size and suits anyone looking for an understated watch that sits close to the wrist. Case, smooth bezel and Oyster bracelet are in Oystersteel.
Calibre 3230 has the Chronergy escapement and about 70 hours of power reserve, and the watch is water-resistant to 100 metres. The Oyster Perpetual has no date and no rotating bezel: the dial carries the character. At its introduction, pronounced colours appeared alongside silver, blue and black, including turquoise, yellow, coral red, pink and green. The number after the hyphen, as in 126000-0009, is Rolex's catalogue number and distinguishes those versions.
On a pre-owned example we look at wear on the smooth bezel and case, at play in the bracelet and at the clasp, and at the set. Because the reference exists in many dial colours, we always state the version for the watch. Anyone looking for a larger size will find the same watch in 41 mm; anyone who wants a date chooses a Datejust.

