Microbrand

August 18, 2026

RARE, Microbrand Sea Diver Watch By Under Water, Sapphire Crystal

200 mm water resistance/656 feet. Screw case back. Stainless steel bracelet. The SealDiver is equipped with a sapphire crystal. Sapphire crystal is not actually a glass, rather, it is pure aluminum oxide that has undergone a crystallization process.