2 days full size marine chronometer in gimbal mahogany box.
Dial signed 'Dobbie Son & Hutton,Makers To The Admiralty, 113 Fenchurch st. LONDON N5612. 
integral balance, chronometer spring detent escapement, helical hairspring,chain and reversed fusee. 
The chronometer run strong and keep good time. 
The Chronometer and box fine .
The Gentlemen if you have a questions I with pleasure shall answer them.
100 years old Marine Chronometers are very hard to come by. 
This piece is in excellent condition, please see all the photos.
I am a member of NAWCC(National Association of Watch and Clock Collectors)
Gentlemen if You have a questions on this chronometer ,
I with pleasure on them answer.