You can attach an Apple Watch to this Nico Gerard watch

Somebody actually did it - Nico Gerard is now offering a mechanical watch with a special bracelet to which you can attach an Apple Watch:

"This classic timepiece shows the world you have an affinity for discerning tastes, and provides you with the technology that respects you to the core of your being. The 41mm case exudes style personified. Inside the case lays the mechanical wonder of the NG2824A movement, certified by the Contrôle Officiel Suisse des Chronomètres, the Official Swiss Chronometer Testing Institute, and is rated to 100-meter depths for pressure. The bracelet mechanics meld fine, Swiss-watchmaking traditions with the support of the 38mm Apple Watch, included for the insightful Nico Gerard clients that preorder this elegant marvel."

The price is... $9,300.