Based on your comments, it seems like you want to be able to install apps using ADB, and your question might be better rephrased as "Can I enable ADB on the Galaxy Gear?". Of course, I might be misunderstanding your intentions entirely (let me know if that's the case!)

[This article][1] indicates that you can enable ADB mode on the Galaxy Gear itself, which is actually kind of exciting. The steps are simple. The article also has a helpful video!

1. Swipe to "Settings"
2. Scroll all the way down to "Gear Info"
3. Enable "USB Debug"

If you're on Windows, you'll doubtlessly need the [Samsung USB Drivers][2]. But other than that, you should be pretty much set!


  [1]: http://www.androidauthority.com/side-load-galaxy-gear-apps-281864/
  [2]: http://developer.samsung.com/android/tools-sdks/Samsung-Andorid-USB-Driver-for-Windows