James Cox, London

manual winding cylinder clock-watch movement with fusee chain, pierced and engraved balance cock with diamond end stone, blued screws, engraved dust cover, white enamel dial, Roman numerals dial for the hours at 12 o'clock, Arabic numerals minute outer track, three subsidiary dials for date, constant seconds and 1/5^th jumping seconds, gilt metal case covered with shagreen skin, winding holes to the back with dust covers, dust cover and movement signed and numbered, dial signed

The movement is running at the time of cataloguing, however it might benefit from a service soon. Dial slightly spotted with some noticeable scuffs. Chips to the constant seconds hole. Small areas of skin to the shagreen case missing as well as gilt holes decorations. Patina to the bow.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. All dimensions in catalogue descriptions are approximate. Condition reports may not specify mechanical replacements or imperfections to the movement, case, dial, pendulum, separate base(s) or dome. Watches in water-resistant cases have been opened to examine movements but no warranties are made that the watches are currently water-resistant. Please note that we do not guarantee the authenticity of any individual component parts, such as wheels, hands, crowns, crystals, screws, bracelets and leather bands, since subsequent repairs and restoration work may have resulted in the replacement of original parts. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. In particular, please note it is the purchaser's responsibility to comply with any applicable import and export matters, particularly in relation to lots incorporating materials from endangered species.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

**Please be advised that bands made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) are not sold with the watches and are for display purposes only. We reserve the right to remove these bands prior to shipping.

Important Notice regarding importation into the United States of Rolex watches
Sotheby's cannot arrange for the delivery of Rolex watches to the United States because U.S. laws restricts the import of Rolex watches. The buyer or a designated agent may collect the property in the country of sale."

Jumping 1/4 and 1/5^th second indications are rare and mostly seen in the era on watches were made for the Eastern markets. This jumping seconds watch contains a subsidiary dial that advances in tiny jumps of 1/5^th second, beating with the balance. This high precision feature is considered to be the precursor of the chronograph.

For more information please see Terence Camerer Cuss, The English Watch, United Kingdom, 2009, p. 294 and Francois LeCoultre, A Guide to Complicated Watches, Neuchâtel, 1985, p. 19.