English silver open faced precision pocket watch Circa 1894

Silver lever watch attributed to Bahne Bonniksen
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An English silver open faced precision pocket watch with 52,5 minutes carousel, circa 1894. ¾ Plate movement, an English lever escapement, gold screw compensation balance and blued balance spring. White enamel dial with Roman hours, an outer minute track, sunk subsidiary seconds at 6 o’clock and blued spade & whip hands. The polished case with maker’s mark JR. Case and movement numbered.
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Diameter: 53 mm
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Weight: 124 g
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Signed: No name