Professor
·Are you sure UDT the Navy did away with it in 1983
https://en.wikipedia.org/wiki/Underwater_Demolition_Team
Maybe you meant this
Explosive Ordnance disposal
https://en.wikipedia.org/wiki/Explosive_ordnance_disposal_(United_States_Navy)
Or SWCC
https://navyseals.com/ns-overview/navy-swcc-the-navys-elite-boat-warriors/
If you read about SWCC I was post Vietnam in riverine in SBU XI
Being ex Navy maybe some thing with a 24 hour marks on the dial next the regular time numbers on the dial. Took me a long time to get the 24 hour time in my head. Every thing military time like you have the 1200 to 1600 quarter deck watch just using this as a example. And since he is around water some thing that can survive being in the water. You work out side in all kinds of weather. I used a Seiko quartz diver when in for 22 years got it at the ships store still have it. I notice most of the new guys before I retired used G-shocks there water proof and can be set for military time that's what I would get him. Mite not be what most here would get him but most here never been in the military remember it's going to be used were the watch is going to get beat up and be used in all types of weather for work. So a G-shock mite be the right choice. Don't get him a dam dress watch it will never get used.
Here is some thing I found on the net.
https://www.g-central.com/best-g-shock-watches-for-military/
I'll have to ask him in detail at first opportunity. Recently I've only heard from him through his aunt who raised him till he was about 12. He stays in touch more or less and uses my email address to send us photos of the new babies as they come along.
I know he is not a SEAL, an old injury from childhood was deemed reason enough to prevent his taking SEAL training. They had wanted to put in an artificial hip joint at age ten but failure rate was too high and it did not really seem called for, and it seemed to correct itself as he grew. It caused no problems when he played football in high school. Perhaps they figured it might give out in combat conditions. They apparently feel its not a problem in this line of work.
Underwater Demolition was mentioned though no details so I just used the UDT abbreviation since that was familiar to me.
Many years ago I mentioned to him that learning to do underwater work in the Navy could pay off big time in commercial diving in later years. I've heard divers for oil companies and the like rake in some real money. He may have remembered my mentioning this.
Like I said he no doubt has a good watch for his work. A dress watch would be for off duty and special occasions. It might be worn in uniform or in civvies.
While recovering from an injury early on he acted as an Admiral's assistant for a year or so and once traveled to Germany to assist in identification and recovery of USN POW remains from a WW2 prison camp site, so he is pretty well traveled by now and used to meeting people as part of his job.