When Patek launched the mighty 5990 it was easily the most impressive stainless steel Nautilus ever made. This example has just come back from a full Patek inspection and waterproofing and is complete with its (UK supplied) Patek Philippe Certificate of Origin dated Jul 2017, booklets, wallet and polished wooden box. The automatic CH 28‑520 C FUS calibre movement combines Pateks, famous travel-time complication with a fly-back chronograph and 55 hour power-reserve. Waiting lists have been closed at Patek for several years now, and demand shows no sign of slowing down.