John Sutherland, 38, Cranmer Road Forest Gate, London, No. 5162 with London hallmarks for 1904. Extremely fine 18K gold, keyless pocket chronometer with one minute tourbillon regulator, awarded a Class A Certificate by the National Physical Laboratory, Teddington, Middlesex, was credited as Especially Good in 1914, with a total of 86.9 marks, passing with superior merit, with original Certificate. | Important Watches, Wristwatches and Clocks | Geneva, Hotel Des Bergues, 12th April 1997

Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Apr 12, 1997

LOT 52

John Sutherland, 38, Cranmer Road Forest Gate, London, No. 5162 with London hallmarks for 1904. Extremely fine 18K gold, keyless pocket chronometer with one minute tourbillon regulator, awarded a Class A Certificate by the National Physical Laboratory, Teddington, Middlesex, was credited as Especially Good in 1914, with a total of 86.9 marks, passing with superior merit, with original Certificate.

CHF 30,000 - 40,000

Sold: CHF 36,800

C. Double body, massive, "pomme et filets " , polished, by Frederick Thorns (Master Mark). D. White enamel by Willis, with Roman numerals and sunk subsidiary seconds. Blued steel "pear" hands. M. Glazed 20"', frosted and gilt, two-third plate, 20 jewels, pointed tooth lateral lever escapement with gold wheel, brassinvar Guillaume balance, balance spring with terminal curve. One minute tourbillon regulator with polished steel three equidistant arm carriage drawn from that of Nicole Nielsen's second type. Signed on the back plate. In excellent condition. Diam. 55 mm.

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Notes

Extract from the results of trial Rated hone March 2 to April 15 1914 The mean daily rate, in pendant up position: - 1.1" The mean daily rate, in right position: - 0.6" The mean daily rate, in left position: - 0.1 " The mean daily rate, in dial up position: - 1.4" The mean daily rate, in dial clown position: - 0.7 " Mean variation of daily rate: +/ - 0.28 " Mean change of daily rate for I " Faht.: +/ - 0.07 " Difference between the extreme: 5.2 " Number of the above marks awarded In respect of variation of daily rate: 34.3 In respect of change of position: 37.4 In respect of temperature compensation: 15.2 Total: 86.9 This watch was prepared and then submitted to the N.P.L. by John Francis Cole of Usher & Cole, presumably on behalf of the owner, some ten years alter it was made. J.F. Cole and Sons is not the correct name style of the business and was no doubt an understandahle men on the part of the N.1'.t..: Cole was an outstanding springer and timer and would have been personally very familiar to the staff. His father Richard Wright Cole died in 1919, Joseph Usher having done so in 1903. None of J.F. Cole ' s sons joined the firm but the continued running Usher & Cole Ltd. until he sold it to Camerer Cuss on his retirement in 1955. informations kindly provided by Terrence Canuaer Cuss, London.