I am selling a new to me as of July 1 Momentum Sea Quartz 30 with a hydro mod. I did the modification myself by opening the case and adding the proper silicone oil. I’ve done this mod 4 times previously. I have the proper case opening tools and have built my own watches with 2824 movements to Top
Grade 7750 and 7753 chronographs. I do minor watch repair and this is well within my skillset. Obviously, I do not pressure test it, but theoretically it is impervious to water and is now capable of significant depths beyond its stated rating.

It will come with all box, papers, and all bracelet links as I received it. I already have one that I’ve done the hydro mod to and just bought a mint Tag 1000M right after I bought this, otherwise I would keep it for myself. It is a cool watch and with the hydro mod, it is even cooler and a great conversion piece! This watch gets more compliments than any other I’ve owned. I will also include a 20mm tropic strap in black. I will change the battery and refill with the proper silicone oil for whoever purchases the watch for life- the watch or mine, whichever ends first. It is in mint, unworn condition

My price is $350 shipped in the US. I’ll put up pics of the box and papers tomorrow.

Pic below is prior to hydro mod. As it arrived on bracelet.

Pics with hydro mod