Grained and lacquered brass case with solid back door for winding, hand set and escapement start / stop levers.

Glazed front with angular brass carrying handle. with original tooled leather travel case and winding key.


Silvered engraved brass dial with Roman hour numerals, having wind indicator hand and dial above VI with intersecting seconds dial at XII.

Signed Thomas Mercer.


Sold 21/3/1974 by Thomas Mercer for £617.59p.

Original sales receipt and instruction book.

Private collection UK.


Earnshaw-type spring detent with compensated balance wheel and blued steel helical balance spring.