An early 19th Century English Debaufre in a gilt open face case. Full plate gilt keywind movement with resting barrel, polished steel Geneva stopwork. Pierced and engraved bridge cock with polished steel coqueret. Plain three arm polished steel balance with blue steel spiral hairspring, gilt Bosley regulator. Debaufre escapement employing two polished steel escape wheels acting alternately on a single steel roller. Winding through the white enamel dial, Roman numerals, gold hands. Plain gilt metal open face case, the movement hinging out at 9 o'clock, , maker's mark “WB” in a rectangle.
A rare escapement, also known as a chaffcutter, Ormskirk or club footed verge. It was the first frictional rest escapement invented by Debaufre in 1704. Rarely used until it was taken up by Lancashire makers early in the 19th Century. The escapement is not affected by variations in power as was the case with the verge and some watches dispense with the fusee. See Chamberlain's “Its About Time” page 123 for a description of a similar escapement. A low numbered example from a maker listed in Baillie