This is a fine pocket watch from the watch retailer Sir John Bennett Ltd, London.
 
Sir John Bennett was a significant watch manufacturer in London during the 19th century. He retailed his watches through premises at 65 Cheapside in London although, by the time it became Sir John Bennett Ltd, he had departed. The shop front was later dismantled, taken to America and now forms part of the Henry Ford (museum) at Greenfield Villiage near Detroit, USA.  
 
Some very interesting history of Bennett can be seen at the London Street Views site.
 
The movement is unsigned but has been identified as by Minerva.  It is a very fine movement characterised by 17 jewels, four adjustments, three double-screwed chatons, a triple screwed chaton and a swan neck regulator for fine adjustments. This is a serious piece of very fine engineering and far above the average pocket watch. 
 
The porcelain dial is in excellent condition and is free from hairline cracks. It has Roman numeral hour indexes and a railroad track outer. Blued steel Poire hands and a small seconds sunken sub-dial at 6.

The watch measures 50mm in diameter excluding the winding stem and the loop. The case is silver and there are hallmarks inside both the case back and the dust cover for Birmingham 1924 with a case maker’s mark for the Dennison Watch Case Company. Dennison was a prolific manufacturer that supplied numerous watchmakers with high-quality cases. The case has a couple of little “dings” to the hinged back and another on the bezel but overall the condition is very acceptable.

The watch has a glass lens which is in good condition with just a small chip on the beveled edge.