What does 50 m mean on a watch?
M (5ATM) – Suitable for Light Water Exposure: With a 50M rating, your watch can withstand accidental submersion, such as when washing your car or getting caught in a downpour, but it’s not recommended for swimming. Watches rated to 50m can generally withstand prolonged contact with water during activities such as showering, gentle pool swimming, or perhaps a spilt cup of coffee.
Is a 50mm watch too big?
X-Large and oversized watches are 48mm and up in diameter. If you have larger wrists, or just want to make a bold statement, these are for you. A 7-inch wrist is pretty average for men. Most people with this size look great in a 38–42mm watch. Prefer something slim and low-key? Try 36–38mm.