Seamaster Series 300M – High-End Reproduction by Shike Mei

New Seamaster series 300-meter model featuring a 43.50mm case, bezel, and dial with ripple pattern crafted entirely from black zirconia (ZrO2) ceramic. Skeletonized hands and the 12 o’clock dot are coated with Super-Luminova luminescent material for enhanced visibility in low light. The intricate mechanics of the movement are clearly visible through a sapphire crystal case back with a ripple-edged design, showcasing the 8806 caliber movement.

️ Three Exclusive Technologies:
1. Industry-exclusive ability to directly thread teeth into the ceramic case, allowing the stem tube to be securely screwed directly onto the ceramic housing. This prevents stem detachment and delivers superior waterproof performance. The case back is also directly screwed onto the ceramic body—other manufacturers require a stainless steel inner liner to achieve this.
2. World’s first to successfully form threads on a ceramic bezel, eliminating the need for embedded steel components to rotate the bezel, resulting in a crisper, more authentic operational sound.
3. Proprietary full-ceramic case construction without the need for a metal middle case for waterproofing. Competitors rely on inserting a steel inner chassis within the ceramic shell for structural integrity and water resistance, whereas this design achieves both purely through advanced ceramic engineering.