Originally Posted by
T-Mar
The Seven came out in 1976 and will definitely have a date code. I can confirm it's not 1978 or 1979, unless the derailleurs are not original. Frankly, they seem a bit upscale for a Nomade but generally both are not replaced, so I'm assuming they are original.
I will take a better look at the deraillers tonight. I do have a 1981 (confirmed) Sekai 1500 mixte with Suntour 7 derailers and figured this Motobecane might be in the same year-range. Although the Sekai has a Suntour 7 GT rear derailler, the front one is identical to the Nomade II.