I am not sure what you mean by that but to be sure, the X-700 has full metered manual mode as defined in the manual under that mode of operation although it doesn't operate in the same manner as manual mode using the XD-11.
A fully coupled exposure meter in Manual mode is, in my mind, something that lets you see both the exposure suggested by the camera and the exposure actually set on the camera.
E.g. in our X-700 wee see the aperture set on the lens through the periscope and we have an array of LEDs on the right.
In A or P mode the LED corresponding to the shutter time selected by the camera is on (two leds are on if the shutter time is intermediate between two canonical values).
In M mode, the LED corresponding to the suggested shutter time is on, but you have no way to know which is the shutter time which is actually selected on your camera.
With most other cameras (and also some derivatives of the X-700 such as the X-500 as far as I read) you have full coupling, in the sense that in manual mode the camera tells you the light meter reading AND the actual manual values (one of the two blinks I guess).
Most manual-only cameras show you in the viewfinder if you are, at the moment, overexposing or underexposing relative to the camera indication. So if you are taking a picture of let's say a white marble building you manually open the exposure, relative to the camera indications, while still looking in the viewfinder.
The majority of manual and automatic cameras allow you a manual use with the same functionality of a manual camera.
With the X-700 the use in Manual is less versatile than the use of a proper manual camera. That's not a big problem if you tend to use an external light meter anyway, but most people don't use them.
Fabrizio