I see there's not alot of info on this model but it seems like a Blancpain signature watch.
So, I finally got the guts to chk it out some of the models on display at my local AD.
The Fathom watches on display.

The Original Fifty Fathoms.


This is a really really HUGE watch... at 45mm, I do not think small wrists can pull it off.
Nicely built... quality is there...
But the bracelet is a real turnoff...
Check out how you're suppose to open the clasp.
Closed

Step one... flip the locking clasp up "sideways"

Step two... flip open the clasp... there's no click here... just pressure lock.

Imagine if you're wearing the watch... opening and closing of the buckle is a hassle... well, to me at least.
Just so you're wondering, the RRP is RM51800.
The 500 Fathoms

The size is the same as the Fifty Fathoms. Fancier dial and overall design.
Comes with the sailcloth strap with rubber backing that I suspect will make the leather lasts longer but I have heard from the higher ups that the rubber peels away from the actual strap over time.

Feel on the wrist is same as the Fifty Fathoms... huge...
And the RRP for this one is RM74200.
The next one is a Fathoms watch with GMT... not sure what the exact model is.

Same as the previous 2... wears huge...
RRP for this one is RM86400.
These are watches that you really need to try on before committing to buy.
Just something that I'd thought I should share.