English lever with 2 centre second and stop slide Circa 1892

Silver watch with 2 centre second revolution centre seconds and stop slide
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A rare and interesting English silver open-faced lever watch with 2 centre second revolution centre seconds and stop slide, circa 1892, gilded three-quarter plate movement, ratchet tooth lever escapement, decoratively engraved balance cock, ruby endstone, signed John Taylor, Rochdale, Williams’ Patent No. 4762.
White enamel dial, Roman numerals with minute ring above, outermost seconds ring calibrated for 16ths of a second, the centre seconds completing one rotation every two seconds, subsidiary seconds, gold spade hands, blued steel seconds hands, signed Williams Patent no. 4762, sole maker John Taylor, Rochdale.
Silver case, the back centred with blank engraved cartouche, start/stop slide to band operating a whip on the balance, cuvette and pendant with maker’s mark C.H in rectangular cameo for Charles Harris.
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Diameter: 59 mm
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Signed: John Taylor Rochdale Williams’ Patent No. 4762
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The centre seconds hand completes one revolution every two seconds; its corresponding seconds ring is calibrated to 16ths of a second with the quarters marked for 8ths. The patent with a diagram was dated March 1890 and the patentee took out two previous patents, the first provisional in 1881 (323), the second in 1883 (4496).