Patek Philippe Nautilus Power Reserve 3710
This is the classic Nautilus model with a power reserve indicator added from the first generation of the Nautilus family.
When it appeared in 1998, the "power reserve" Nautilus 3710 was the first new Nautilus model since the 1981 introduction of the mid-sized 3800. The main difference between this and the original Nautilus was the addition of a power reserve indicator inside the 11:00 position on the dial. This watch uses the in-house Cal. 330 SC rather than the Jaeger-LeCoultre ebauche found in the original Nautilus.
Patek Philippe refreshed the entire Nautilus line in 2006 but did not replace this Ref. 3710 directly. Ref. 3710 was only produced in stainless steel with a black dial.