Does anyone know the weight in grams of the speedy professional with the leather strap, 3870.50 (same as 3570.50 original moon watch, but with the strap)? Or even the sapphire sandwich on strap? My dad has always loved the watch and we want to get it for him, but he has carpal tunnel and we want to make sure it's relatively lightweight. I know it's the lightest of the speedy's and he likes it the best (me, too). Any information would be appreciated. I tried to convince him to get a railmaster 39mm on strap(which I am strongly considering), but he really wants the speedy. You guys on the Omega forum are the most active on here by far (I think it's great), so I'm hoping someone can help. Thanks a lot.