Lecoultre Gold Watch - Help Identifying It

[Bladeshot]

Hi, I have a watch that is marked LeCoultre&Co with lots of english hallmarks, and I would be grateful if someone could enlighten me as to an approximate vingate and description for the piece. I'm a Rolex guy and not well informed in vintage pieces of this era. It has cobalt blue enamel inlay on the top cover and some inscriptions on the reverse-inside cover. Hallmarks on both rear covers. It runs! Looks like it is missing a small crystal on the front cover.

Lots of photos at the below link. Thanks.

http://s1073.photobucket.com/user/bl...0Wrist%20Watch