One shelf for the parts of a smartwatch that you choose: the band on the wrist, the case around it, the face you see and the film over the glass.
Ask about this domainExample products and example prices, made up for this concept. Nothing here is for sale.
Shopping by part, so nobody has to know the model number first.
Leather, steel, silicone, woven.
Bumpers and full wraps.
Dials and complications.
Screen protectors, fit by size.