Ulysse Nardin Blast Hourstriker Review

,#Blast # hour‑striker #Impressive watch
🕰️ 1. Unique mechanism & movement – calibre UN‑621
This is an hour‑striker watch with an automatic tourbillon, chiming the hours and half-hours every passing hour in a sonnerie mechanism, and can be struck on demand by means of a pusher ([turn0search6], [turn0search1]).

The UN‑621 movement comprises 366 components, 46 jewels, beats at 4Hz and has a power reserve of up to 60 hours ([turn0search4]).

An ultra-thin titanium sound membrane system (only 0.3mm thick), combined with a DLC layer and a sound-transmitting “X” back structure developed by Devialet – one of the most advanced sound technologies available on a watch

🎨 2. Design & Finish
The 45 mm × 16 mm case is made of DLC-coated titanium and 18ct rose gold, combining polished and satin-brushed surfaces, giving it a modern, rugged design like the F‑117 Stealth fighter
The openwork dial reveals the entire strike mechanism and tourbillon. The large rose gold hands and hour markers contrast clearly, are easy to read and fit the overall boldness of the watch
Despite its complex design
, the model still achieves a water resistance of 30m – a rare balance in the line