That's a sad story
And you lost a GENUINE Omega Speedmaster - even worse Hopefully you can claim that on insurance after producing the box and receipts etc, but they may say it was due to your own negligence, but I wish you could luck. It doesn't hurt to try.
If I travel, it is usually with 2 watches, so when I go out and fly back, I wear one on each wrist. Can't forget it that way.