Ca. 18 × 10 × 7.5cm (including carrying handle), gilt, glazed case, full plate movement, plate on the back signed Dent London No. 20794, winding by chain/fusee, extremely rare chronometer balance, so-called Dent's Staple Balance, helical hairspring, diamond endstone, detent chronometer, 8-day movement, signed enamel dial in very good condition, seconds scale, blued steel hands, in working order. In our opinion, this extremely rare chronometer is in rare condition. Only the transport box, while exactly matching and of the period, is probably not by Dent. These chronometers are of the finest quality and extremely rare. The last Dent chronometer with Dent's staple balance known to us was part of the special auction 'George Daniel's extraordinary collection' and sold for ca 75,000€ in London. The chronometer came from an important collection that included 3 of these chronometers and was auctioned in Geneva in 1995. The estimated prices of the chronometers were already in 1995 at a 35,000CHF-50,000CHF.