Appears my previous application to Longines maybe included too many photos and was not received / acknowledged.
Following second application with just 3 photos, now pleased to advise Longines emailed following 31 Oct. and await the official "Extract from the Archives" ref. same.
Dear Mr.Kxxxxxxxxxx,
We thank you for contacting us and for your interest in Longines watches.
Further to your request, we are pleased to provide the information contained in Longines' handwritten registers.
Originally, the serial number 6'904'748 identifies a Longines mechanical manually wound movement, caliber 12.68N. It was invoiced on 14 May 1945 to the company Baume & Co., which was at that time our agent for the UK.
The other parts of the watch were produced locally under license from Longines. Unfortunately, since the relevant archives are not in our possession, we are unable to provide any further information on your model.
For your information, we send you by post an Extract from the Archives from Longines. Hopefully, you will receive it in the next few days.
We remain at your entire disposal for any further information you may need.
Truly yours,
AXXXX DXXXXX
Branding and Heritage
Compagnie des Montres Longines Francillon SA
CH-2610 Saint-Imier, Switzerland
Phone +41 32 942 53 08
Another dial pic: