I am gonna state the obvious here, and say DON'T BUY SAILING WATCHES FROM THIS MILENIA AS THEY ALL SUCK... Now I feel better. You know the drill on this for Christ sakes... Just buy an Ironman, gshock or a goddamn kitchen timer instead of sending your hard earned $$ to a marine parts vendor... Yea they look good but shockingly the sailing parts builder knows squat about watches... food for thought. Still wearing the same Casio I had as a kid... It has to be 35+ years old... Changed batteries a couple times but I know it will work as it has the Same guts as every other Casio ever built....
Used an Ironman for the last 20 years. I have had 3 in those 20 years. I buggered up replacing a battery and the seal let water in. And another one got a cracked face while I was hammering concrete. This is year 5 with the current one. They are waterproof. And I don't need to memorize another manual for a different watch.
Simple and cheap.