Ulysse Nardin Diver Chronograph 44mm Titanium Case And Bezel

Ref. 1503-170-3/93

The Diver Chronograph sits at the serious end of what Ulysse Nardin asks of its dive line — not a dressed-up sports reference but a watch built around the UN-150, a movement the manufacture developed with a DIAMonSIL escapement: diamond-coated silicon components that run without lubrication and hold their rate more consistently across temperature changes than conventional lever and wheel arrangements. The silicon hairspring compounds that resistance to interference. It is the kind of engineering that matters most when the watch is actually underwater, where servicing is not an option. Titanium keeps 44mm honest on the wrist — the watch carries less than its footprint suggests, and the inverted concave bezel sits lower against the hand than a conventional raised profile would. The tri-compax layout places the running seconds at nine, leaving three and six for the chronograph registers, with the date integrated into the hour counter at six rather than given its own window. In strong light the blue dial reads with a fine-grained texture; in the dark, the applied indices and hands hold their charge well into a night dive.

Reference

1503-170-3/93

Brand

Ulysse Nardin

Case size

44mm

Case material

Titanium

Case shape

Round

Dial

Blue

Crystal

Sapphire

Movement

Automatic

Calibre

UN-150

Functions

Chronograph

Water resistance

300m

Bracelet / strap

Rubber strap

Strap colour

Blue

Clasp

Buckle

Lume

Super-LumiNova

Retailer

Goldsmiths