Ulysse Nardin Diver X Skeleton 44mm Titanium Case And Bezel

Ref. 3723-170-1A/3A

The Diver X Skeleton sits at the more architectural end of Ulysse Nardin's dive lineup — a 175-piece limited edition that treats the movement as the primary visual element rather than concealing it behind a conventional dial. The white X-shaped bridge suspended at the centre is the structural logic made visible: it holds the dial together while leaving the calibre open to view from both sides through sapphire crystals front and back. The UN-372 runs a silicon hairspring, anchor, and escape wheel — a combination that removes the movement's sensitivity to magnetic fields and reduces the wear that eventually forces a service on a conventional lever escapement. For a watch rated to 200 metres and built to go in the water, that matters more than it would in a dress piece. The 72 to 96-hour power reserve means it will restart on a Monday morning after a weekend off the wrist. At 15.7mm thick it is not a watch that disappears under a cuff, and at 44mm it makes no concession to subtlety. The white rubber strap and white bezel give it a coherent, deliberately monochromatic character that the blue seconds hand and blue detailing on the X interrupt in exactly the right amount.

Reference

3723-170-1A/3A

Brand

Ulysse Nardin

Case size

44mm

Case thickness

15.7mm

Case material

Titanium

Case shape

Round

Dial

Silver

Crystal

Sapphire

Movement

Automatic

Calibre

UN-372

Functions

Skeleton dial

Water resistance

200m

Bracelet / strap

Rubber strap

Strap colour

White

Clasp

Deployant clasp

Lume

Super-LumiNova

Retailer

Goldsmiths