A very fine and extremely rare 18k yellow gold, manual wind hunting-cased, keyless minute-repeating pocket watch, chronometer movement with perpetual calendar, phases and age of the moon. Watch specially ordered by Louis Ador with his name on the dial.
Grading System: 
CHF 40,000 - 60,000
HKD 348,000 - 520,000
USD 44,300 - 67,000
EUR 40,800 - 62,000
Brand Vacheron Constantin, Switzerland
Year Sold to Mr. Louis Ador in 1928
Movement No. 366226
Case No. 226249
Diameter 58 mm.
Caliber RA 20’’, 31 jewels, rhodium plated, "fausses côtes" decoration, counterpoised straight line lever escapement, cut bimetallic balance, Breguet balance spring, swan-neck micrometer regulator. Repeating on gongs via a slide in the band.
Signature Dial, case and movement
LONGINES, SINGLE BUTTON CHRONOGRAPH, POCKET WATCH, 18K YELLOW GOLD
A fine 18K yellow gold, open-face, keyless-winding, round-shaped, pocket watch with single button chronograph, white enamel dial, and telemetric scales graduated for 1000 meters and for 100 meters, Instantaneous 30-minute recorder (subsidiary dial at 12 o’clock).
Grading System: AA
HKD 32,000 - 45,000
USD 4,100 - 5,800
CHF 3,700 - 5,200
EUR 3,900 - 5,400
Brand Longines
Model Single button chronograph
Year circa 1926-1928
Movement No. 4604584
Case No. 4604584
Diameter 52mm.
Weight 89gr. (approx.)
Caliber 19.73N
Signature dial, case and movement
PATEK PHILIPPE, APPLIED BREGUET NUMERALS, WHITE AND YELLOW GOLD
Grading System: AA
CHF 5,000 - 8,000
EUR 5,100 - 8,200
USD 5,700 - 9,100
HKD 44,200 - 71,000
Brand Patek Philippe, Switzerland
Year Made in 1927, sold in September 1928
Movement No. 815954
Case No. 606167
Diameter 28 mm.
Caliber 9'''
Signature Dial, case and movement signed
Accessories extract from the archives
ROLEX REF.18238, DAY-DATE, 18K YELLOW GOLD, DIAMOND
Grading System: AAA
HKD 110,000 - 198,000
EUR 13,900 - 25,200
CHF 13,700 - 24,800
USD 13,800 - 25,000
Brand Rolex
Model Day-Date
Reference 18238
Year Circa 1991
Movement No. 6192843
Case No. X479455
Bracelet 18K yellow gold Rolex 8385 bracelet with 55B end link, approx. length 170mm.
Diameter 36mm.
Weight 140gr. (approx.)
Caliber 3155
Signature Dial, case and movement
Sold: HKD 137,500
Grading System:
CHF 20,000 - 40,000
EUR 20,600 - 41,200
USD 19,900 - 39,800
HKD 158,000 - 314,000
Brand Rolex, Switzerland
Model Datejust
Reference 16030
Year circa 1982
Case No. 7521928
Bracelet stainless steel Rolex Jubile bracelet, approx. overall length 165 mm.
Diameter 36 mm.
Caliber 3035, 27 jewels
Signature Dial, case and movement signed
Accessories service invoice from Bucherer dated 2020 in the amount of CHF 744, picture of Sergio di Mello wearing the watch with Boutros Boutros Ghali, 2 commemorative Brazilian stamps, book "Sergio Viera de Mello, un homme exceptionnel" by Lennox and Stevenson
Sold: CHF 25,000
MONTBLANC VINTAGE FOUNTAIN-PEN, SAFETY FILLER NUMBER 4 OCTOGONAL LONG SIZE, SOLID GOLD
Safety filler number 4 octogonal long size.
Grading System: AAA
EUR 20,000 - 30,000
USD 21,100 - 31,600
HKD 166,000 - 248,000
CHF 20,200 - 30,300
Brand Montblanc, Germany
Model Octogonal long size
Year circa 1928
Weight 37.56 gr. (aprox.)
Dimensions 14.15 cm. (approx.)
Accessories original fitted box
PLATINUM VACHERON CONSTANTIN CHRONOGRAPH
Grading System:
CHF 8,000 - 14,000
HKD 68,000 - 118,000
USD 8,700 - 15,200
EUR 7,500 - 13,100
Brand Vacheron Constantin
Year Made in 1928
Movement No. 402696
Case No. 253850
Diameter 46 mm
Caliber Cal.19’’’ 26/12, rhodiumplated, 23 jewels, straight line lever escapement, cut bimetallic compensation balance, Breguet balance-spring, Vacheron & Constantin micrometer regulator (Patent CH 101652, registered 1 November 1923).
Signature Dial, Case and Movement
Sold: CHF 16,250
Swatch Ref. SUPZ 100, quartz, “puzzle motion” dial, limited edition; plastic
Grading System: AA
HKD 4,200 - 8,400
CHF 500 - 1,000
EUR 500 - 950
USD 550 - 1,100
Brand Swatch, Switzerland
Model “puzzle motion” (Swatch Irony Medium collection); limited edition
Reference SUPZ 100
Year 2008 (spring-summer)
Movement No. unnumbered
Case No. unnumbered
Material plastic
Bracelet plastic Swatch strap
Buckle plastic Swatch buckle
Diameter 38 mm.
Weight 25.2 gr. (approx.; including strap and buckle)
Caliber quartz standardisation
Signature dial, case and movement
Accessories original fitted box, certificate of origin (dated, Lausanne, August 30, 2010), booklets
Grading System: AAA
EUR 30,000 - 50,000
USD 35,700 - 60,000
HKD 278,000 - 462,000
Brand Omega, Bienne / Biel
Model “Anti-Magnétique” “Cadran Breveté / S.G.D.G.” (patented dial, without government guarantee)
Reference KOT 741 AV
Year circa 1928
Movement No. 7 685 557
Case No. 7 600 945
Bracelet brown leather strap
Buckle gilded metal buckle
Diameter 45 mm
Caliber 17’’’, 39 CHRO, straight-line lever escapement
Signature dial, case and movement
Accessories Extract from the Archives
Sold: EUR 65,000
PATEK PHILIPPE, ART DECO, BLUE ENAMEL AND SAPPHIRES, PLATINUM
Grading System:
CHF 3,000 - 5,000
HKD 24,000 - 40,000
USD 3,000 - 5,000
Brand Patek Philippe
Year made in 1928, sold in April 1939
Movement No. 821142
Case No. 619332
Caliber 18 jewels
Dimensions 45 mm
Signature Dial, case and movement
Accessories fitted box, extract from the archives, pouch
Sold: CHF 17,500
PATEK PHILIPPE, REF. 96, CALATRAVA, YELLOW GOLD*
Grading System: AA
EUR 4,700 - 6,700 *
USD 5,700 - 7,900 *
HKD 43,600 - 61,000 *
Brand Patek Philippe
Model Calatrava
Reference 96
Year Circa 1928
Movement No. 819751
Case No. 294006
Bracelet Leather yellow gold buckle signed
Weight 33,12 g
Caliber 12’’, lever escapement
Dimensions 33 mm
Signature Case, dial and movement
Accessories Extract from the archives and box
Sold: EUR 6,500
PATEK PHILIPPE, CHRONOGRAPH COUNTER, BREGUET ENAMEL DIAL, MADE FOR BEYER, ZURICH, YELLOW GOLD
Grading System: AAA
CHF 8,000 - 14,000
HKD 64,000 - 112,000
USD 8,000 - 14,000
Brand Patek Philippe
Year Made in 1913, sold in November 1928
Movement No. 157389
Case No. 408650
Caliber 18’’’
Dimensions 50 mm
Signature Dial, case (also inscribed made for Beyer Zurich) and movement
Accessories Extract from the archives
Sold: CHF 13,750
Patek Philippe - Ref. 437, Art Deco; “Calatrava”; stainless steel
Stainless steel, manual-winding, tonneau-shaped, small Art Deco gentleman’s wristwatch, snap-on case-back, flat bezel, with subsidiary seconds at 6. Silver colour dial with suspended Arabic numeral and radial indexes. Case-back engraved in taille-douce (fine-cut) with the cypher “N.M.B”.
Grading System: AAA
HKD 52,000 - 69,000
USD 6,700 - 8,800
EUR 6,000 - 8,000
CHF 6,700 - 8,800
Brand Patek Philippe, Geneva
Model “Calatrava”
Reference 437
Year Circa 1928 and 1935 (casing)
Movement No. 818 267
Case No. 612 223 (by Frères Borgel – Manufacture Taubert & Frères, Geneva)
Material stainless steel
Bracelet black leather strap
Buckle stainless steel PP buckle
Height 35.1 mm.
Width 28.3 mm.
Caliber 10’’’, gilded brass, straight-line equilibrated lever escapement, à moustaches; with stainless steel protective dust cap
Signature dial, case and movement
Accessories Extract from the Archives
Sold: HKD 75,000
ROLEX REF. 935, PATENTED PURSE-WATCH; SILVER (0.925) AND ENAMEL
Silver (0.925) and enamel, cabriolet, manual-winding vertical rectangular-shaped, Art Deco, patented purse-watch; silver colour dial. Case based on the British invention patent No. 265 886, delivered on February 17, 1927, to Carl Friedrich Bosch, Pforzheim, Baden (Germany), for a “Improvements in or relating to Clocks”; also patented in Germany, Switzerland, U.S.A. and France
Grading System: AA
HKD 20,000 - 25,000
CHF 2,500 - 3,200
USD 2,550 - 3,250
Brand Rolex
Reference 935
Year Circa 1928
Calibre 10’’’ “Extra Prima, timed 6 positions, for all climates”
Case No. 68 539
Dimensions 36.6 x 30.5 x 9.7 mm
Signature Dial, Case and Movement
Accessories Copies of invention patents
Sold: HKD 27,500
TO BE SOLD WITHOUT RESERVE
Platinum and diamond-set, manual-winding, vertical rectangular-shaped, Art Deco early lady’s wristwatch, with hinged case-back. Bezel and lugs set with rose-cut diamondsGrading System: AAA
HKD 20,000 - 40,000
CHF 2,500 - 5,000
USD 2,550 - 5,100
Brand Vacheron Constantin
Model Made for J. E. Caldwell & Co., Philadelphia, Pennsylvania (U.S.A.)
Year Circa 1928
Movement No. 405 242
Calibre 5 ¾ ’’’ (12.9 x 22.4 mm), rectangular-shaped with cut corners, five adjustments
Case No. 20 179
Bracelet Integrated platinum and diamond-set bracelet with clasp
Dimensions 44 x 14.5 mm
Signature Movement
Sold: HKD 25,000
REUTTER, ATMOS, COMPAGNIE GÉNÉRALE DE RADIOLOGIE, CHROMIUM-PLATED METAL
Fine and rare chromium-plated metal Atmos clock, 5 glass panels, silver dial printed « Cie Gle de Radiologie », Art Déco arabic numerals and hands, visible balance. Engraving on the back: « Brevets J.L. Reutter, S.G.D.G., Made in France ». Breveted in France in 1928 by Jean-Léon Reutter, later manufactured by Jaeger-LeCoultre, based on the idea of perpetual-winding by a slight change in atmospheric pressure.
Rare pendule Atmos en métal chromé, modèle vitré sur les cinq côtés, cadran argent « Cie Gle de Radiologie », chiffres arabes appliqués et aiguilles Art Déco acier bleui, balancier visible. Plaque en métal fixée au dos gravée « Brevets J.L. Reutter, S.G.D.G., Made in France ». Mouvement breveté en France en 1928 par Jean-Léon Reutter, plus tard repris par Jaeger-LeCoultre, principe basé sur le remontage perpétuel par expansion de gaz causé par un changement de pression atmosphérique.
Grading System: AA
EUR 7,000 - 12,000
CHF 7,800 - 13,400
USD 7,800 - 13,400
HKD 60,000 - 100,000
Brand Reutter
Model Atmos
Year Circa 1930
Case No. 1847
Dimensions 23,5 x 17 x 14 cm
Montblanc 4 Long Silver Safety
Silver 900 barleycorn
Big enamel star
Safety eyedropper filler nr 4 long size
Nib 14 CARAT 4 heart-vent
With box
Excellent condition
CHF 13,200 - 16,500
HKD 108,000 - 135,000
USD 13,200 - 16,500
Brand Montblanc
Year Circa 1928
Sold: CHF 15,342
Gold 585 barleycorn
Safety eyedropper filler nr 4
Big enamel star
Nib 14 CARAT 4 heart-vent
Excellent condition
CHF 11,000 - 13,200
HKD 90,000 - 108,000
USD 11,000 - 13,200
Brand Montblanc
Year Circa 1928
Gold 585 greek key
Safety eyedropper filler nr 2
Big enamel star
Rare Montblanc 14 CARAT 2 heart-vent J-nib
Excellent condition
CHF 4,400 - 6,600
HKD 36,000 - 54,000
USD 4,400 - 6,600
Brand Montblanc
Year Circa 1928
BENRUS/ WADSWORTH/GOLDSMITH STERN & CO, BYRD ANTARCTIC SOUTH POLE EXPEDITION, STEEL/14K GOLD
TO BE SOLD WITHOUT RESERVE
A historically important and rare set of three manual wind wristwatches given to Alton Parker for his 1928-1930 Byrd South Pole expedition.Grading System: AAA
CHF 500 - 1,000
HKD 4,000 - 8,000
USD 500 - 1,000
Brand Benrus
Model Sky-Chief
Reference 22201
Year Circa 1935
Calibre 28/ 10’’’/ 9 1/2’’’
Case No. 722188/1090326
Bracelet custom made silver cuff bracelet
Dimensions 31/ 27/ 25 mm
Signature Dial, Case and Movement.
Sold: CHF 2,000