A very fine, elegant and rare, gold plated open-face, keyless-winding, round- shaped, perpetual calendar, leap year indication, phases of the moon pocket watch.
Grading System: AAA
CHF 15,000 - 25,000
HKD 144,000 - 240,000
USD 18,300 - 30,400
EUR 16,200 - 27,000
JPY 2,880,000 - 4,800,000
Brand Ecole Professionnelle de la Vallee de Joux, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1961
Movement No. 472
Diameter 47 mm.
Weight 73 gr.
Caliber 38 mm., 19 jewels, rhodium plated, "fausses cotes" decoration, straight line lever escapement, swan-neck micrometer regulator, blued steel balance spring with terminal curve.
Signature Movement
Accessories Original presentation box engraved “EPVJ” (École Professionnelle de la Vallée de Joux), accompanied by a rate certificate dated 20 March 1961.
TO BE SOLD WITHOUT RESERVE
A fine, silver, manual wind open-face, keyless-winding pocket watch with white enamel dial, subsidiary seconds at 6 o’clock and blued steel Breguet hands. Accompanied by a watchmaker’s sizing tool from the École d’Horlogerie de Saint-Imier, housed in a wooden box.Grading System: A
CHF 2,000 - 4,000
HKD 19,100 - 38,200
USD 2,500 - 4,900
EUR 2,200 - 4,400
JPY 384,000 - 770,000
Brand Ecole d'horlogerie de Saint Imier, Switzerland
Year Circa 1920-30
Movement No. R.1.928I.
Case No. 1927
Diameter 50 mm.
Caliber 41 mm., 19 jewels, rhodium-plated movement with fausses côtes decoration, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator with swan-neck spring and micrometric screw.
ECOLE D'HORLOGERIE GENEVOISE, SWITZERLAND, “PIÈCE ÉCOLE”, MADE BY ARMAND CRONBERY, SILVER AND GOLD
TO BE SOLD WITHOUT RESERVE
A fine, silver, manual wind open-face Geneva Watchmaking School pocket watch, so-called “pièce-école”, with white enamel dial and subsidiary seconds at 3 o’clock. Silver cuvette with glazed aperture framed by a silver rim.Grading System: A
CHF 3,000 - 5,000
HKD 28,600 - 47,700
USD 3,700 - 6,100
EUR 3,300 - 5,400
JPY 580,000 - 960,000
Brand Ecole d'Horlogerie Genevoise, Switzerland
Year Circa 1885
Diameter 53 mm.
Caliber 42 mm., 19 jewels, frosted gilt, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index-regulator.
Signature Dial, case and movement
TO BE SOLD WITHOUT RESERVE
A fine, silver and niello, manual wind open-face pocket watch from the École de Microtechnique de La Chaux-de-Fonds, made by Paul Huguenin. Case decorated with floral motifs, the bezel decorated en suite. Enamel dial with Arabic numerals, stainless-steel spade hands and subsidiary seconds at 6 o’clock.Grading System: AA
CHF 1,500 - 2,500
HKD 14,300 - 23,900
USD 1,850 - 3,100
EUR 1,650 - 2,700
JPY 288,000 - 480,000
Brand Ecole de microthechnique de la Chaux-de-Fonds, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1922
Movement No. 950.4
Case No. 5541
Diameter 51 mm.
Caliber 41 mm., 19 jewels, rhodium-plated movement, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator.
Signature Case and movement
ECOLE D'HORLOGERIE GENEVOISE, SWITZERLAND, “PIÈCE ÉCOLE”, MADE BY H. BOSSON, SILVER
TO BE SOLD WITHOUT RESERVE
A fine, silver, manual wind open-face Geneva Watchmaking School pocket watch, so-called “pièce-école”, with white enamel dial, subsidiary seconds at 6 o’clock and blued steel Breguet hands.Grading System: A
CHF 1,500 - 2,500
HKD 14,300 - 23,900
USD 1,850 - 3,100
EUR 1,650 - 2,700
JPY 288,000 - 480,000
Brand Ecole d'Horlogerie Genevoise, Switzerland
Year Circa 1920-30
Movement No. 8452
Case No. 133
Diameter 52 mm.
Caliber 42 mm., 19 jewels, gilded brass, going barrel, straight-line lever escapement, cut bimetallic compensated balancewith gold poising screws and blued steel hairspring with terminal curve, polished steel index-regulator.
Signature Dial and movement
A fine and large, stainless steel, manual wind keyless-winding pocket watch with silver dial, subsidiary seconds at 6 o’clock. Transparent caseback.
Grading System: AAA
CHF 5,000 - 8,000
HKD 47,700 - 77,000
USD 6,100 - 9,800
EUR 5,400 - 8,700
JPY 960,000 - 1,540,000
Brand Ecole d'Horlogerie Genevoise, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1940
Movement No. 500
Diameter 50 mm.
Caliber 42 mm., 19 jewels,(Geneva Quality Hallmark or Geneva seal). Rhodium-plated movement with fausses côtes decoration, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve,polished steel index-regulator with swan-neck spring and micrometric screw.
Signature Dial and movement
A fine and large, stainless steel, manual wind keyless-winding pocket watch with silver dial, subsidiary seconds at 6 o’clock.
Grading System: A
CHF 3,000 - 5,000
HKD 28,600 - 47,700
USD 3,700 - 6,100
EUR 3,300 - 5,400
JPY 580,000 - 960,000
Brand Ecole d'horlogerie de Saint Imier, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1961
Diameter 54 mm.
Caliber 200, 42 mm., 19 jewels, rhodium-plated movement with fausses côtes decoration, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator.
Signature Dial and movement
TO BE SOLD WITHOUT RESERVE
A fine and rare, stainless steel, manual wind Open-face, keyless-winding pocket watch. Two-tone silvered dial with applied Breguet numerals, outer minute track and subsidiary seconds at 6 o’clock. Gold Breguet hands. Case back decorated with a relief depiction of the Technicum Cantonal de Bienne.Grading System: AA
CHF 2,000 - 4,000
HKD 19,100 - 38,200
USD 2,500 - 4,900
EUR 2,200 - 4,400
JPY 384,000 - 770,000
Brand Technicum Cantonal Bienne, Switzerland
Model “PIÈCE ÉCOLE”
Movement No. 2334
Diameter 51 mm.
Caliber 42 mm., gilt-brass movement, 17 jewels, going barrel, straight-line lever escapement, cut bimetallic compensation balance with gold poising screws, blued steel hairspring with terminal curve, and polished steel index regulator with swan-neck spring and micrometer screw.
Signature Dial and movement with the initials TBC
ECOLE D'HORLOGERIE DE SAINT IMIER, SWITZERLAND, “PIÈCE ÉCOLE”, MADE BY L. WIRTZ, SILVER AND NIELLO
A very fine, silver and niello, manual wind open-face pocket watch from the Saint-Imier Watchmaking School, made by L. Wirtz, in an Art Deco style. Case decorated with a geometric pattern of alternating vertical and horizontal lines, the bezel decorated en suite. Silvered dial with stainless-steel hands and subsidiary seconds at 6 o’clock.
Grading System: AA
CHF 2,000 - 4,000
HKD 19,100 - 38,200
USD 2,500 - 4,900
EUR 2,200 - 4,400
JPY 384,000 - 770,000
Brand Ecole d'horlogerie de Saint Imier, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1930
Movement No. 100
Case No. 13
Diameter 51 mm.
Caliber 41 mm., 19 jewels, lever escapement, swan-neck micrometer regulator
Signature Case
A fine and rare, stainless steel, manual wind triple calendar chronograph wristwatch with moonphase.
Grading System: AA
CHF 6,000 - 10,000
HKD 58,000 - 96,000
USD 7,300 - 12,200
EUR 6,500 - 10,800
JPY 1,160,000 - 1,920,000
Brand Ecole d'Horlogerie, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1950
Diameter 36 mm.
Caliber Valjoux 88, 29,5 mm., 17 jewels
Signature Dial and movement
A fine, rare, stainless steel, manual wind chronograph wristwatch
Grading System: AA
CHF 2,500 - 4,500
HKD 23,900 - 42,900
USD 3,100 - 5,500
EUR 2,700 - 4,900
JPY 480,000 - 870,000
Brand Technicum La Chaux-de-Fonds, switzerland
Year circa 1950's
Diameter 37
Caliber Valjoux 23, 17 jewels
Signature dial
A fine and rare, stainless steel, manual wind triple calendar chronograph wristwatch with moonphase.
Grading System: AA
CHF 3,000 - 5,000
HKD 28,600 - 47,700
USD 3,700 - 6,100
EUR 3,300 - 5,400
JPY 580,000 - 960,000
Brand Ecole d'horlogerie de Saint Imier, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1950
Case No. 547021
Diameter 34 mm.
Caliber Valjoux 88, 29,5 mm., 17 jewels
Signature Dial
ECOLE D'HORLOGERIE DE SAINT IMIER, SWITZERLAND, “PIÈCE ÉCOLE”, CHRONOGRAPH, STAINLESS STEEL
A fine, stainless steel, manual wind chronograph wristwatch with minute counter, silver guilloché dial.
Grading System: A
CHF 3,000 - 5,000
HKD 28,600 - 47,700
USD 3,700 - 6,100
EUR 3,300 - 5,400
JPY 580,000 - 960,000
Brand Ecole d'horlogerie de Saint Imier, Switzerland
Model “PIÈCE ÉCOLE”
Year Circa 1940
Case No. 1168
Diameter 35 mm.
Caliber Valjoux 23, 29,5 mm., 17 jewels
Signature Dial
ECOLE PROFESSIONNELLE TRAMELAN, SWITZERLAND, REF. 12012, STAINLESS STEEL
TO BE SOLD WITHOUT RESERVE
A fine, unusual, stainless steel, manual wind chronograph wristwatchGrading System: AA
CHF 1,000 - 2,000
HKD 9,600 - 19,100
USD 1,250 - 2,500
EUR 1,100 - 2,200
JPY 192,000 - 384,000
Brand Ecole Professionnelle Tramelan , switzerland
Reference 12012
Year circa 1970's
Case No. V1321A
Bracelet stainless steel LAMP bracelet with deployant clasp, approx. overall length 173 mm.
Diameter 38
Caliber Valjoux 23, 17 jewels
Signature dial
ECOLE D'HORLOGERIE DE PORRENTRUY, SWITZERLAND, STAINLESS STEEL
TO BE SOLD WITHOUT RESERVE
A fine, rare, new old stock, stainless steel, self winding center second wristwatch with day and dateGrading System: AA
CHF 1,000 - 2,000
HKD 9,600 - 19,100
USD 1,250 - 2,500
EUR 1,100 - 2,200
JPY 192,000 - 384,000
Brand Ecole d'horlogerie de Porrentruy, switzerland
Year circa late 1970's
Diameter 40
Caliber Eta 2878, 17 jewels
Signature dial, case and movement
ECOLE D'HORLOGERIE GENEVOISE, SWITZERLAND, STAINLESS STEEL
A fine, rare and unusual, electro-mechanical center second wristwatch
Grading System: A
CHF 1,000 - 2,000
HKD 9,600 - 19,100
USD 1,250 - 2,500
EUR 1,100 - 2,200
JPY 192,000 - 384,000
Brand Ecole d'Horlogerie Genevoise, switzerland
Year circa 1970's
Diameter 35
Caliber electric
Signature dial
ECOLE D'HORLOGERIE DE PORRENTRUY, SWITZERLAND, PURPLE DIAL, STAINLESS STEEL
TO BE SOLD WITHOUT RESERVE
A fine, rare, stainless steel, self winding center second wristwatch with day and dateGrading System: AA
CHF 1,000 - 2,000
HKD 9,600 - 19,100
USD 1,250 - 2,500
EUR 1,100 - 2,200
JPY 192,000 - 384,000
Brand Ecole d'horlogerie de Porrentruy, switzerland
Year circa 1970's
Diameter 41
Caliber eta 2789, 17 jewels
Signature dial and case
ECOLE D'HORLOGERIE LE LOCLE, SWITZERLAND, REF. A 386, EL PRIMERO, STAINLESS STEEL
A fine and extremely rare, stainless steel, self winding chronograph wristwatch made at the Le Locle watchmaking school
Grading System: AAA
CHF 6,000 - 10,000
HKD 58,000 - 96,000
USD 7,300 - 12,200
EUR 6,500 - 10,800
JPY 1,160,000 - 1,920,000
Brand Ecole d'horlogerie le Locle, switzerland
Model El Primero
Reference A 386
Year circa 1971
Case No. 923 D 761
Bracelet associated stainless steel riveted expandable bracelet with deployant clasp, approx. overall length 162 mm.
Diameter 38
Caliber 3019 PHC, 31 jewels
Signature dial, case and movement
ECOLE TECHNIQUE VALLEE DE JOUX, SWITZERLAND, REF. 9803, STAINLESS STEEL
TO BE SOLD WITHOUT RESERVE
A fine and rare, stainless steel, self winding chronograph wristwatch with date and central minute counter made for the watchmaking school at La Vallee de JouxGrading System: AA
CHF 2,000 - 4,000
HKD 19,100 - 38,200
USD 2,500 - 4,900
EUR 2,200 - 4,400
JPY 384,000 - 770,000
Brand Ecole Technique Vallee de Joux , switzerland
Reference 9803
Year circa 1970's
Movement No. 3623189
Diameter 39
Caliber Lemania 1341, 17 jewels
Signature dial
PATEK PHILIPPE, SWITZERLAND, REF. 2509, WATERPROOF "VACUUM", BORGEL CASE, STAINLESS STEEL
A fine and extremely rare, stainless steel, manual wind waterproof wristwatch made by Norbert Henry at the Geneva watchmaking school
Grading System: 
CHF 15,000 - 25,000
HKD 144,000 - 240,000
USD 18,300 - 30,400
EUR 16,200 - 27,000
JPY 2,880,000 - 4,800,000
Brand Patek Philippe, switzerland
Reference 2509
Year circa 1960's
Movement No. 344
Case No. 52506
Diameter 35
Signature dial, case and movement
