An early 18th century gold pair cased verge pocket watch signed Tompion & Banger

An early 18th century gold pair cased verge pocket watch signed Tompion & Banger:

Thomas Tompion & Edward Banger, London, an early 18th century gold pair cased pocket watch, key wind and set, gilt full plate movement with verge escapement and steel three arm balance with reeded rim, the balance cock with symmetrical piercing and foliate engraving, the pierced foot and regulator plate similarly ornamented, Egyptian pillars, and ornamental screws and springs, in a 22 karat gold pair case, the later outer case with repousse ornament, and containing an equation of time watch paper from John Grant, the inner case with shutter for winding aperture, London hallmark, and date letter for the year 1703, later roman numeral white enamel dial with outer arabic five minute markers and blued steel beetle and poker hands, serial #3415, 53mm, 137.4g TW
Condition

CASE: Back of outer case with dent near hinge; Outer case with small hole behind pendant; Outer case with some tight splits and pinholes following contours of repousse, most easily viewed from the inside; Catch button dented; Catch re riveted to case; Rim with scratches at 1 – 2:00; Repousse with some wear; Inner case with some fine scratches; Minor denting from contact with outer case rim; Pendant reattached to case; Bow replaced; Precious metal content marked, tested. DIAL: An 18th century replacement; Minor scratches and a few hairlines. HANDS: Minor losses to blue. MOVEMENT PLATES: Fine scratches on plate; Minor marring at serial number; Some steel with minor oxide specks and some losses to blue; A bit dirty. MOVEMENT FUNCTION: Runs dial up; Dial down runs for 10 – 15 seconds; Staff good; Would benefit from service. Purchased by the consignor at Sothebys, London, March 18, 1974, lot 39, and included in Jeremy Evans inventory of Tompion’s work in his book “Thomas Tompion at the Dial and Three Crowns”, page 92. ACCESSORIES: