Offered by the seller as a "BEAUTIFUL WWI 1915 MARCONI OFFICERS TRENCH WATCH"
It was a nice looking piece, my attention drawn to the original lumed dial and hands, original crown, and a perfect undamaged enamel dial.
But was it a Rolex/Marconi. Seller insisted it was. He had a service document where the jeweler stated it was 'Marconi' I had my doubts.
It did not look like the movements used by Rolex in Marconi pieces that is Beguelin - Damas, nor was movement or dial marked 'Marconi'.
I decided that it was not Rolex, but worth buying. With great help from Roland Ranfft, I now know that I have this:
Silver Plated circa 1917 Trench Wristwatch.
Movement by: A Michel S.A. Grenchen. One of the three original ebauche makers that created ESA in 1926. 15 jewel movement. Marked ‘68’?
Dial: Enamel dial with original lumed numbers and hands.
I dated it more to 1917 or later based on the properly fitted down pointing lugs into case.
Here she is. A Rolex by any other name would 'taste and smell as sweat'
ACKNOWLEDGEMENTS Roland Ranfft