Rolex watches. If you stick to a relatively non-blinged out dial, their design is pretty timeless (heh heh) and the movements are ROCK SOLID, will last for decades without a service and can be serviced by virtually any competent watchmaker. The newer movements are a little more tricky with the parachrome mainsprings and whatnot and they restricted parts access so they may be torpedoing their rep, but for the older models their reputation is well earned.
Wusthoff forged kitchen knives (or any good german knife maker) the jump from stamped steel to proper forged knives is pretty large. Blades that will last for decades of sharpenings so long as you are not using a belt sander or angle grinder on it, handles that won't warp or crack or come loose. Just gotta treat them right, hand wash only, use a rod at times and learn to sharpen then and you will never need those lesser knives again.
Lecreuset pots. This is cast iron coated in enamel. So they look great, are easy to clean, handle damn near any cooking method. You just gotta avoid metal utensils, let them warm up and cool down properly, and stay away from harsh scrubbers and the pots will last decades looking brand new. Waaaay better than thinner aluminum that warps, lesser coatings that fade, chip, or scratch, or handles not molded in that come loose. A couple of these bad boys in a few sizes and the only thing you gotta worry about is a skillet that can handle scrambled eggs.
Vitamix blender. This is a BLENDER. It's heavy, most of it is metal, and it has TORQUE! You may balk at dropping a few hundred on something that does what a $40 walmart special "can do", but once you realize the power of the vitamix to blend damn near anything, spin long and hard enough to heat up the contents to make HOT SOUP, and that it will crush ice all day, every day, you realize that it will outlast you and the 10 lesser blenders that are now junk.
Kitchenaid stand mixer. This is the CLASSIC workhorse mixer. Even the hinged (versus the lever) versions have the same powerful gearing, lack of digital nonsense that will fail, and not to mention the plethora of attachments using the gearing at the front. There is a reason why you see this brand on every cooking show ever produced. Buy once, cry once, use it forever.
Wright wrenches. It's just a wrench, I can get a dozen of them for $20 from china, right? WRONG. Quality wrenches have better edges, they won't slip and round off the nut, the finishing is better so they don't rust, they are true to measurements, the metal is better so they hold up to abuse. Totally worth the couple hundred to get sets of metric and SAE in the ranges that cover appliances and automotive so you can do stuff at home. That "30 in 1" kit you got for xmas in the nice little molded plastic box is gonna fail you or just not have the exact size you need and will lead to frustration and damage. You don't gotta buy them all at once, but I make a point of writing down when I could have used a specific tool or when a cheap tool failed me and then upgrade. You can just deal with stripped screws, nuts, broken bolts, and all that, or you can pony up and get proper tools that do the job right, the first time. So long as it doesn't have a battery you are buying stuff for your grandkids anyway, assuming they have anything that isn't immediately disposable or just 3D printed on demand.
