Heavy English gold chronometer watch with power reserve Circa 1862

Gold watch with chronometer escapement
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A fine and heavy English splendour hunting cased pocket watch with 30h power reserve indicator and spring detent escapement, circa 1862, gilt 2/3 plate movement, key winding, chain/fusee, gold screw compensation balance, freesprung blued helical balance spring. Engraved balance cock. Movement signed Brillman & Co, 76 Leadenhall Street London.
18 Carat gold case, entirely florally engraved and chased with maker’s punch mark AS. push button on the pendant to open the spring-loaded front. Gold cuvette signed Chronometer.
Silvered dial, elaborately engraved, applied floral gold ornaments, Roman numerals, outer minute track, subsidiary seconds dial and power reserve indicator dial.
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Diameter: 52 mm
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Weight: 144 g
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Signed:  Brillman & Co.  London Chronometer
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Brillman, later Brillman & Co, 76 Leadenhall St, London, watch and chronometer makers, with strong associations to the Spanish market, about whom little has been published.
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Slightly rubbed.
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Reference 0025000