The anniversary line's smaller case: 38mm in platinum, returning the Nautilus to a mid-size proportion, with the horizontally embossed sunburst blue dial, white gold baton markers and the extra-thin calibre 240. Platinum at this size changes how the watch wears as much as anything else — the weight is immediately apparent against a steel or gold example. A 2,000-piece edition. What matters on examination: platinum's softness makes original case geometry both more vulnerable and more important, so establishing an unpolished case comes first; then bracelet condition, and complete anniversary documentation. Confirmed through the desk. Maker: Patek Philippe. Reference: 5610/1P-001. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.