The Oyster Perpetual isn't the flashiest Rolex (although, some recent additions to the Crown's subtle
link three-hand collection are making a run at it), but it is among the most shareable. The OP's moderate proportions and design simplicity make it perfect for wrists of varying sizes. The
link only thing working against it from a sharability standpoint is probably the bracelet.
link You might want to alternate months or seasons if you and your other half have very differently sized wrists.
link