The black diamond Lady-Datejust, serviced, with one thing to ask.

The Lady-Datejust is the Datejust at 26mm, the size Rolex made for women from the 1950s until it moved the line to 28mm in 2015. It is the same watch in miniature: an Oyster case with a screw-down crown, an automatic chronometer movement, the date under its Cyclops lens at three, a fluted or engine-turned bezel, and a Jubilee or Oyster bracelet. Because Rolex made them for six decades in every dial and metal, the pre-owned market is deep and this is where the money goes when people search for a women’s Rolex.

Rolex’s reference numbers carry the metal: 179173 is steel and yellow gold, 179171 is steel and Everose, and the G suffix means a diamond-set dial. REKLAIM lists this as 179171G, which would be a rose-gold bezel and links; the photograph shows a bezel and centre links in what reads as yellow gold, which would be 179173G. Photographs can warm a rose tone, and listings can carry a typo, so the copy does not pick; it tells you to ask REKLAIM for the reference between the lugs. Either way the watch itself is the black diamond-dial two-tone Lady-Datejust, and REKLAIM is the one reseller on this page that says it services every watch and backs it with a limited warranty.

REKLAIM gives the reference as 179171G, the dial as black, the movement as automatic, the warranty as Limited, and says each watch is professionally inspected, serviced and authenticated. It does not give a grade, a serial, or whether this unit includes box or papers. The diamond markers, fluted bezel and Jubilee bracelet are from the photograph; the gold colour is where the stated reference and the photograph disagree. The calibre, chronometer rating, reserve and 100 metres are Rolex’s published figures for the 1791xx generation.

REKLAIM authenticates in-house and is not a Rolex authorised dealer, and Amazon adds its 30-day return window on top of REKLAIM’s limited warranty. Ask for the reference between the lugs, the service date, the warranty terms, and whether box or papers come with this unit. Nothing here was measured on the watch.

This unit is sold by REKLAIM through Amazon Luxury Stores, authenticated by the seller with Amazon’s 30-day return window on top; it is one piece, and when it sells the listing goes away, so the second button opens the live search for 26mm Lady-Datejusts.

Steel and two-tone Lady-Datejusts have resold close to what pre-owned buyers paid, sometimes more, sometimes less; that is a pattern, not a promise, and nothing here is investment advice.