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Ultra-Hardened Pie-Pan Watch S4090 Case: Durability Redefined
To enhance durability, the S4090 case undergoes a specialized hardening process—a advanced deposition method that forms an ultra-hard protective film on the stainless steel surface. While standard stainless steel has a Vickers hardness of HV 200, this treatment boosts the watch's surface hardness to an impressive HV 500, more than doubling its resistance to scratches and wear.
Light Gold Plating: Vintage Aesthetic with Enhanced Hardness
IP gold plating has a vibrant color that fades over time when it loses its outer layer of protection. In order to give Baltany Pie-Pan watch S4090 case a vintage aesthetic and to show it as if it had been used, we use a “light gold plating” process. While normal gold plating involves applying a base layer to the surface of the object and then electroplating it with gold, the plating process we chose this time was to deposit both gold and titanium nitride on the surface of the case at the same time. After this process, not only the color is lighter, showing the effect of IPG's old color, but more importantly, the surface hardness is higher, up to HV 300+, which is 2 times higher than ordinary IPG.
Baltany Pie-Pan S4090 Review
Another 9039 Automatic 1921 Homage Driver Watch S4055
