We Tried to Destroy a Seiko Diver... It Refused to Die. BRUTAL THERMAL TEST.

Can a Seiko diver survive the ultimate thermal shock? Most watchmakers would never attempt this. We did. In this video, two Master Watchmakers push a Seiko diver far beyond anything it was designed to endure. From boiling hot water to ice-cold temperatures, followed by an industrial ultrasonic cleaning bath, we subject this mechanical watch to one brutal test after another—all in real time. No tricks. No camera cuts. No special effects. Just a genuine experiment to see how one of Seiko's toughest dive watches copes with extreme thermal stress and rapid temperature changes. The tests include: • Boiling hot water • Ice-cold immersion • Rapid thermal shock • Industrial ultrasonic cleaning • Real-time observations by Master Watchmakers Would we recommend doing this to your own watch? Absolutely not. This experiment was performed under controlled workshop conditions by experienced watchmakers. Attempting similar tests at home could permanently damage your watch. Watch until the end to see whether this Seiko survives—and whether our opinion of its engineering changes after witnessing the results firsthand. If you enjoy genuine watchmaking experiments, subscribe and let us know what you'd like us to test next. #Seiko #SeikoDiver #Prospex #Watchmaker #MasterWatchmaker #MechanicalWatch #DiveWatch #WatchTesting #Horology #WatchRepair