ADDIESDIVE AD2525 Automatic Diver Miyota 8215 Movement Sapphire Glass 200M Luminous: What the 200M Claim Does and Does Not Mean

A microbrand automatic diver with the Miyota 8215 movement, sapphire crystal and a 200-meter water resistance claim, under the model code AD2525. The movement is the trustworthy part of the spec: Miyota 8215 is a real, widely serviced Japanese calibre with 40+ hours of reserve, and sapphire as stated is a meaningful upgrade over mineral glass. The 200M figure deserves more caution. It is a seller claim, not a certified ISO 6425 dive watch rating — no certification body tested it. In practice, a properly built 200M case handles swimming and snorkeling without worry; what it has not proven is saturation diving or repeated professional use. The listing does not say whether the crown is screw-down, which matters more for real water resistance than the number itself, so confirm that detail before swimming with it. AD2525 is the listing's own model code, useful for finding the same watch from other sellers; luminous brightness and strap material impressions vary between reviews, so check recent buyer photos rather than the renders.