However, I've never wanted it enough to drop $8,000 to buy a real Rolex Submariner. So instead, I built my own for less than $150 with an Invicta Pro Diver watch, a Shark Straps NATO strap, and a solid spring bar tool. A spring bar tool is necessary if you’re going to swap watch bands.
If you want to attempt assembling your own, here’s a good video showing the process of changing the straps:
With all that done 2, here was the result: