Normally I do not like using the 'R'are word, but I think this watch is in deed a pretty 'rare' Rolex. It is a:
1908 or 1912 Silver Rolex Half Hunter
100% original, beautiful and 'truly rare' Vintage 19oX's Rolex solid sterling silver half hunter wrist watch - What I can not determine is if it has a London Import Mark (which it looks like) dating it to 1908, which in my opinion is too early, or a Birmingham Import Mark (that it doesn't look like) dating it to 1912, which feels correct.
My instinct and knowledge points me to 1912, but is what is without doubt this Rolex Half Hunter is extremely rare and The Most Beautiful Dial you could ever see.
Rolex 15 jewels manual hand wind movement – Inner case back hallmarked and stamped R.W.C. Ltd. Rolex Watch Company 0.925 #117531 repeated twice -
The top cover has a spring release button in built into the crown, to reveal the original and appealing telephone dial with Arabic numerals that shows even age and character
Triple signed Rolex case dial and movement
Secondary hinged protective dust cover.
Articulated moving hinged wide lugs with fold-over quality brown lizard leather strap showing age.
Case diameter is approx 29.3mm without the crown - Thickness is approx 10mm - The size of this classic 1920’s era Rolex Gents wrist watch that has inspired generations would be considered mid or boy-size when compared to today's modern & contemporary large wrist watches.
l00k - 100 Yrs old!
Look at those swinging lugs:
And That FANTASTIC Telephone dial - Look at the Arabic Numbers, especially the '6' the'9' and the '12':
This watch even has it's ORIGINAL Silver Rolex Buckle!
That is my third Half Hunter wrist watch. The Omega from 1895 (converted 1915) and an unknown swiss made dated 1916.