SKMEI brand watches are originally economical Chinese watches known for offering designs heavily inspired by the famous Casio watches (such as the G-Shock and Baby-G series). Therefore, the watch is original as a product of SKMEI company, not a fake "Casio" watch. Here are the proofs and symbols precisely engraved on its back cover: Brand Name: The SKMEI logo appears clearly in the middle. Model Number: The number 1689 is precisely engraved directly above the logo. Compatible Battery Code: Its battery code CR2016 / SR626SW is engraved. Water Resistance: The watch is water-resistant up to 50 meters and is marked 5ATM.