Whilst working my way through a large box of WW1 era wristwatches I encountered this one. Very nicely engraved movement - but balance staff and hs dead. It's possible from the case screws that this wasn't the original case. No reference to this movement on the Ranfft site as far as I can detect and only one example in the Paulson catalogue - and not this one. Approx 28mm (12.5L) movement. I believe that Admiral was a brand owned by Tavannes. Case markings indicate London import by William Henry Sparrow but the date stamp appears to be a serif "i" which I can't identify (23/24?). I think that it would be worth restoring - in the unlikely event that I could obtain a balance assembly.
Anyone recognise it? If not I'll remove the dial and put a snap of the other side up.