I havea gold watch with a 9k case made by BWC marked London Made and with full Exeter marks, 9, the three turret castle, 375, and a script D. I am pretty sure the case and watch are not older than 1930. All the info points to Exter marks not being used in the 20th century. I either have the most advanced watch of its time (by some considerable margine) or the marks are wrong, or my assumptions about the Exeter office are wrong. I am certain it is not another mark ie Edinburgh. Any thoughts, knowlege or wisdom greatfully accepted.
Thanks to the contributors in anticipation.
Regards
Phil
.