Most fighters do tend to be seen with the ubiquitous iced out yellow gold Rolex or AP, and both Manny Pacquiao and his long time trainer Freddie Roach do in fact do the Rolex thing at a lot of major press events and photo ops. Watching one of the lead up documentaries though you could see both Manny and Freddie wearing steel chronographs when in workout gear.

Turns out for Manny that watch was an Omega Railmaster chronograph Ref 2512.52 in stainless steel:



While for Freddie Roach its an Omega Speedmaster Pro Moonwatch Ref 3573.50 (Sapphire Sandwich):




Not sure if Freddie wears his Moonwatch while doing mitt work with Manny but it'd be interesting to see if he could manage to succeed in breaking one where NASA failed.

 

Just updated to reflect that, you're right from the grey ring around the crystal its a sapphire sandwich 3573.50, still just as cool