Patek Philippe Gondolo 5135G-010 51 mm Grey Dial

5135G-010 is a discontinued Gondolo Calendario: the shaped white-gold watch that carries an annual calendar and moon phase rather than a time-only rectangle. The case is 38 x 51 mm, which is Gondolo architecture, not a round calendar from Complications. Patek started it in 2004 and has since ended production, so the reference now sits outside the current catalogue. Guilloché and brushed anthracite-to-slate grey, white-gold Arabic numerals with dart indexes, brown alligator, and a sapphire back are the surface to match.

Because it is no longer made, the several Saudi-shipping offers still listed need a slower identity check than an active reference. Confirm the shaped 38 x 51 mm white-gold case, the annual calendar with moon phase, and the anthracite guilloché dial before assuming two listings are the same watch. Do not confuse it with a round annual calendar from Complications; Gondolo is the family, and this is the Calendario cut of that family. Ask for the sapphire back and matching brown alligator, and treat box and papers as part of identifying a discontinued reference.