Nautilus Annual Calendar Moon Phases Ref: 5726/A1-014-40.5MM New 2026 New Buckle

5mm stainless steel case with one of the manufacture's most sophisticated annual calendar complications. Powered by Caliber 324 S QA LU 24H/303 with a 45-hour power reserve and running at 28,800 bph, it delivers exceptional precision alongside a striking multi-tone dial — available in black, grey, white, and blue variants — protected by scratch-resistant sapphire crystal with 120M water resistance.

First introduced in 2006, this reference is widely regarded among collectors as the ultimate expression of the Nautilus line, combining robust sporting DNA with grand complication watchmaking in a way few pieces can match. The integrated 3700/1A bracelet and steel bezel complete a cohesive, refined aesthetic that has made the 5726 one of the most coveted references in contemporary horology.