Vacheron Constantin movements for sale help on finding watch model

Good morning i have 2 Vacheron movements that i would like to know more about and probably sell them in a near future.
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One is movement number 620370 caliber K 1091 with 27 jewels and with alarm function.
I only saw 1 watch with that movement number on the following web page
""" https://catalog.antiquorum.swiss/en/lots/vacheron-constantin-lot-203-657 """
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The other one is movement number 934479 with caliber 1206 and 31 jewels.
It as a Moonphase function that i don't find in similar 1206 caliber.
Can anyone help me on this matter?
Thank you
Greetings