This is an interesting topic. To me, there are very few watches that I can wear all day without worrying about matching my attires and all, that would be the 116710LN. Its mostly black color configuration makes it easier to match the attires, being a neutral color, also not to mention its 40mm diameter size, makes it look perfect on most wrist sizes.
For big day, on the other hand, I would wear something unique and non-mainstream watches such as vintage watches and sort, gen of course. If I were to wear a rep on my big day, I’ll go with a PP or VC or Breguet. Non-mainstream pieces for once in a lifetime kinda events. What about your preference in terms of your own question mate?
"Tienes que correr riesgos, en esta vida"