Outer ships chronometer Oak case English origin?, 91/4" X 9 3/4" X 9 1/2

Pretty good condition outer case. Make yuor collectible complete with this rare original case. Inside dimensions are 71/4" X 73/4" X 71/2" within the felt liner. Looks like the style use for the Hamilton model 21. If you want it for that I have the Hamilton label that goes on the outside of the case. Thanks