Seiko Prospex Solar SSC295 - Ruby Rose - The Meg
This Seiko watch features a black dial, black case, subdials and a date window. It is 100m water resistant, has a chronograph and compass function. It comes standard with a green nylon strap, but Ruby Rose wears it with a black rubber strap.
The Seiko Prospex Solar watch is available on Amazon.com or you can try eBay for around $370 - $425, and you can replace the strap with rubber band to make it look more like a diver's watch as in the film.
Ruby Rose plays the character Jaxx in the film.