Some very good advice here. Cost is a function of the movement (quartz, "standard" mechanical or "high end" mechanical) and the materials used for the watch. This works in two ways- the type of material (of course, a carbon fibre case will be more expensive that steel) and secondly, the finishing.
The finishing is where a lot of cost is added. Is the case polished or sandblasted/ brushed? Patek use the same basic steel as everyone else, but then spend hours and hours hand finishing the case...hours and hours = $$$$$$$
So in the case of the Formula 1 Indy 500, it's less than the Aquaracer because it has a quartz movement and the case materials are not to the same standard (check the clasp on the bracelet for an example) and it's cheaper than an automatic F1 because while it has the same materials, it has a quartz movement, while the other models you are looking at are almost certainly mechanical.