Rare 19th-Century Sir John Bennett Key-Wind Pocket Watch – Maker to the Royal Observatory ​An exceptional piece of British horological history: a 19th-century silver-cased pocket watch by the highly celebrated London maker, Sir John Bennett. ​This timepiece beautifully showcases the peak of Victorian watchmaking craftsmanship, featuring a beautifully preserved engine-turned case and a high-grade English lever movement. ​Key Features & Details ​Maker/Brand: Sir John Bennett, 65 Cheapside, London. Explicitly signed on the inner dust cover: "Maker to the Royal Observatory" featuring the royal crown insignia. ​Movement: Authentic frosted gilt English lever movement with a balance wheel, regulator index, and traditional multi-bridge layout. It is a classic key-wind and key-set mechanism. ​Dial: Pristine white enamel dial featuring classic Roman numeral hour markers, an outer minute track, and a dedicated sub-seconds register at the 6 o'clock position. ​Hands: Elegant dark spade-style hour and minute hands with a matching sub-seconds hand. ​Case: Solid silver case featuring a finely detailed engine-turned "guilloché" pattern on the back cover with a central vacant cartouche, perfect for personalization. The inner case back is stamped with the serial/reference number 552 / G. ​Accessories: Includes an authentic brass/steel winding key. ​Condition Report ​Dial: Excellent condition, highly legible with deep black numerals and minimal to no visible hairline cracks. ​Case: Great vintage condition with a beautiful natural patina. The engine turning on the back cover remains crisp and defined with light wear consistent with age. ​Movement: Clean, complete, and visually excellent frosted gilt finish. Note: As a vintage mechanical piece, regular servicing is always recommended to ensure optimal timekeeping. ​Visual Reference Guide for Lots (Files) ​Movement Detail: for a detailed macro view of the frosted gilt movement and balance assembly. ​Maker's Engraving: for the signature and Royal Observatory inscription on the inner dust cover. ​Full Dial View: for the front presentation on a display stand showing the dial clarity and the accompanying winding key. ​Case Back:for the crisp engine-turned guilloché pattern on the back of the case. ​Serial Markings: for the internal case stampings showing reference 552 / G. ​An ideal addition for serious collectors of English horology or marine chronometer history. ​International Shipping: Packed with the utmost care and shipped securely with tracking and insurance.