Ulysse Nardin
Blast Hourstriker
6215-400/02
Specifications
Case
Case Size
45 mm
Case Material
Rose Gold
Water Resistance
30 m
Crystal
Sapphire
Dial
Open-work movement with visible chiming mechanism
Case Back
Rose gold caseback with cut-outs and Devialet sound system
Movement
Movement
UN-621, Self-wining for the movement / Manual-winding for the chiming
Power Reserve
60 Hours
Components
374
Jewel
46
Strap
Alligator leather, rubber or velvet, with folding buckle


![Ulysse Nardin Surpasses the Depths with the Diver [AIR] Ulysse Nardin Surpasses the Depths with the Diver [AIR]](https://img.thehourglass.com/tachyon/2025/03/WW25-UNN-DIVER-AIR-Hero-Banner.jpg?w=3840&quality=90)
![Simplicity in Motion: The Ulysse Nardin Blast [Amoureuxpeintre] Simplicity in Motion: The Ulysse Nardin Blast [Amoureuxpeintre]](https://img.thehourglass.com/tachyon/2025/02/Ulysse-Nardin-Blast-Amoureuxpeintre-Hero-Banner.jpg?w=3840&quality=90)


