C. Three-body, polished, back with 6 screws, stepped rounded bezel, coin-edge band, protected winding crown, straight lugs, screwed bars, sapphire crystal. D. Guilloché silver with radial Roman numerals on a plain reserve, outer dot minute divisions, aperture for the date. Blued steel Breguet hands. M. Cal. 889, rhodium-plated, fausses cotes decoration, 23 jewels, straight line lever escapement, monometallic balance, shock absorber, self-compensating fl at balance spring, micrometer regulator, engine-turned gold rotor. Dial, case and movement signed. Diam. 35.5 mm. Thickness 8 mm.
Grading System: AA
CHF 3,500 - 5,500
USD 3,700 - 6,000
EUR 3,000 - 4,500
Sold: CHF 8,750
C. Three-body, solid, polished, case back with 6 screws, coinedge band, fl uted winding crown with crown guard, rounded stepped bezel, straight lugs with gold screwed bars, sapphire crystal. D. Guilloche silvered gold with painted radial Roman numerals on a plain reserve, outer dot minute divisions, aperture for the date at 6. Blued steel Breguet hands. M. Cal. 549, rhodium-plated, fausses cotes decoration, 36 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating Breguet balance spring, hack mechanism. Dial, case and movement signed. Diam 35 mm. Thickness 8 mm. Approx. overall length 180 mm.
Grading System: AA
CHF 8,000 - 12,000
USD 8,500 - 13,000
EUR 6,500 - 10,000
C. Three-body, solid, polished, coin-edge band, straight lugs, crown set with a sapphire cabochon. D. White lacquered with applied yellow gold Breguet numerals, subsidiary seconds. Blued steel Breguet hands. M. Cal.818/4, rhodium-plated, fausses côtes decoration, 21 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, self-compensating fl at balance-spring, micrometric regulator. Dial, case and movement signed. Diam. 33 mm. Thickness 6 mm
Grading System: AA
CHF 5,000 - 7,000
USD 5,300 - 7,500
EUR 4,200 - 6,000
Sold: CHF 6,250
C. Three-body, solid, polished, coin-edge band, straight lugs, crown set with a sapphire cabochon. D. ?Guilloché? silver with painted radial Roman numerals on plain outer reserve, aperture for the date at 6. Blued steel Breguet hands. M. Cal.889/1, rhodium-plated, fausses côtes decoration, 33 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating fl at balance-spring, micrometric regulator, 21K gold rotor. Dial, case and movement signed. Diam. 33 mm. Thickness 6.5 mm.
Grading System: AA
CHF 5,000 - 7,000
USD 5,300 - 7,500
EUR 4,200 - 6,000
C. Three-body, solid, polished, reeded band with correctors, transparent case back, and straight lugs with screwed gold bars, sapphire crystal, sapphire crystals. D. Guilloche silvered gold with painted radial Roman numerals on a plain reserve, subsidiary dial for the days of the month, sectors for the power-reserve indication and age of the moon, aperture for the moon phases, outer minute divisions. Blued steel Breguet hands. M. Cal. 502, hand-engraved gilt brass, 37 jewels, straight line lever escapement, and monometallic balance adjusted to 5 positions, shock absorber, self-compensating fl at balance spring. Dial, case and movement signed. Diam. 36 mm. Thickness 8 mm.
Grading System: AA
CHF 9,500 - 12,500
USD 10,000 - 13,000
EUR 8,000 - 10,000
Sold: CHF 16,250
C. Three-body, solid, polished, the bezel and lugs set with 68 white diamonds, coin-edge band, straight lugs, crown set with a sapphire cabochon, back with 5 screws. D. Hand-guilloche silver with painted radial Roman numerals on an outer reserve, outer minute divisions, secret signature at 12. Blued steel Breguet hands. M. Cal. 503, rhodium-plated, fausses côtes decoration, 18 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, self-compensating fl at balance-spring, micrometric regulator. Dial, case and movement signed. Diam. 25.5 mm. Thickness 5 mm.
Grading System: AA
CHF 3,000 - 5,000
USD 3,200 - 5,300
EUR 2,500 - 4,200
Sold: CHF 9,375
C. Three-body, solid, polished, coin-edge band, rounded bezel, yellow gold screwed bars, transparent case back, sapphire crystals. D. Visible movement, small eccentric guilloché silver dial with radial Roman numerals, retrograde power reserve indication at 11. Blued steel Breguet hands. M. Cal. 507 DR, ?Souscription? style with sand-blasted fi nish, 34 jewels, straight-line lever escapement, monometallic balance with 4 regulating screws and adjusted in fi ve positions, blued steel parachute shock absorber, selfcompensating free-sprung Breguet balance spring, power reserve indication. Dial, case and movement signed. Diam. 38 mm. Thickness 12 mm.
Grading System: AAA
CHF 10,000 - 15,000
USD 11,000 - 16,000
EUR 8,500 - 12,000
Sold: CHF 20,000
C. Three-body, solid, polished, coin-edge band, straight lugs, crown set with a sapphire cabochon, sapphire crystal. D. Silver engine-turned with radial Roman numerals on an outer reserve, subsidiary seconds. Blued steel Breguet hands. M. Cal.818/4, rhodium-plated, fausses côtes decoration, 21 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, self-compensating fl at balance-spring, micrometric regulator. Dial, case and movement signed. Diam. 33 mm. Thickness 6 mm.
Grading System: AA
CHF 4,000 - 6,000
USD 4,300 - 6,500
EUR 3,300 - 5,000
Sold: CHF 5,625
C. Three-body, solid, polished, coin-edge band, straight lugs, crown set with a sapphire cabochon. D. ?Guilloché? silver with painted radial Roman numerals on plain outer reserve. Blued steel Breguet hands. M. Cal.818/4, rhodium-plated, fausses côtes decoration, 18 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, self-compensating fl at balance-spring, micrometric regulator. Dial, case and movement signed. Diam. 31 mm. Thickness 6 mm.
Grading System: A
CHF 4,000 - 6,000
USD 4,300 - 6,500
EUR 3,300 - 5,000
Sold: CHF 5,000
C. Three-body, solid, polished, rounded bezel, coin-edge band with inset calendar adjusters, straight lugs with screw bars, transparent case back, sapphire crystals. D. Skeletonized with off-center hand-guilloche silver ring dial, painted radial Roman numerals for the hours, minutes and concentric upper half retrograde date, silver ring dials for the months at 3 combined with leap year indicator and the days of the week at 9, retrograde 30-seconds graduation at 6, aperture for the tourbillon cage with handengraved steel bridge carrying a blued steel double seconds hand at 6. Blued steel Breguet, arrow and serpentine hands. M. Cal.13''', pink gold-plated brass skeletonized and hand engraved, 21 jewels, lateral lever escapement with one-minute tourbillon regulator with polished steel arms, monometallic balance, self-compensating Breguet balance spring. Dial and case signed. Diam. 40 mm. Thickness 10 mm.
Grading System: 
CHF 80,000 - 120,000
USD 85,000 - 125,000
EUR 70,000 - 100,000
Sold: CHF 110,500
C. Three-body, polished and brushed, bezel with serrated edge, correctors in the rounded band, transparent back with serrated edge secured by 6 screws, curved sloped and indented ?250 ans? lugs, anti-refl ective sapphire crystals. D. Platinum, ?250 ans? guilloché, applied white gold faceted baton indexes and Roman half-hour numerals, outer minute track, subsidiary dials for the day and date, power-reserve sector, applied Seal of Geneva. White gold frosted and polished éventail hands. M. Cal. 2475, stamped with the Seal of Geneva, rhodium-plated, fausses cotes decoration, 27 jewels, straight-line lever escapement, free-sprung monometallic balance with a frequency of 4Hz (28,800A/h) adjusted to 5 positions, shock-absorber, selfcompensating fl at balance-spring, hack mechanism, unidirectional guilloché 22K gold rotor. Dial, case and movement signed. Diam. 40 mm. Thickness 12.5 mm.
Grading System:
CHF 26,000 - 36,000
USD 28,000 - 38,000
EUR 22,000 - 30,000
Sold: CHF 40,000
C. Three-body, polished and brushed, bezel with serrated edge, correctors in the rounded band, transparent back with serrated edge secured by 6 screws, curved sloped and indented ?250 ans? lugs, anti-refl ective sapphire crystals. D. Silver, ?250 ans? guilloché, applied white gold faceted baton indexes and Roman half-hour numerals, outer minute track, subsidiary dials for the day and date, power-reserve sector, applied Seal of Geneva. White gold frosted and polished éventail hands. M. Cal. 2475, stamped with the Seal of Geneva, rhodium-plated, fausses cotes decoration, 27 jewels, straight-line lever escapement, free-sprung monometallic balance with a frequency of 4Hz (28,800A/h) adjusted to 5 positions, shock-absorber, selfcompensating fl at balance-spring, hack mechanism, unidirectional guilloché 22K gold rotor. Dial, case and movement signed. Diam. 40 mm. Thickness 12.5 mm.
Grading System:
CHF 22,000 - 32,000
USD 23,000 - 34,000
EUR 18,000 - 26,000
Sold: CHF 27,500
C. Three-body, polished and brushed, bezel with serrated edge, correctors in the rounded band, transparent back with serrated edge secured by 6 screws, curved sloped and indented ?250 ans? lugs, anti-refl ective sapphire crystals. D. Silver, ?250 ans? guilloché, applied pink gold faceted baton indexes and Roman half-hour numerals, outer minute track, subsidiary dials for the day and date, power-reserve sector, applied Seal of Geneva. Pink gold frosted and polished éventail hands. M. Cal. 2475, stamped with the Seal of Geneva, rhodium-plated, fausses cotes decoration, 27 jewels, straight-line lever escapement, free-sprung monometallic balance with a frequency of 4Hz (28,800A/h) adjusted to 5 positions, shock-absorber, selfcompensating fl at balance-spring, hack mechanism, unidirectional guilloché 22K gold rotor. Dial, case and movement signed. Diam. 40 mm. Thickness 12.5 mm.
Grading System:
CHF 22,000 - 32,000
USD 23,000 - 34,000
EUR 18,000 - 26,000
Sold: CHF 30,000
C. Three-body, polished and brushed, bezel with serrated edge, correctors in the rounded band, transparent back with serrated edge secured by 6 screws, curved sloped and indented ?250 ans? lugs, anti-refl ective sapphire crystals. D. Silver, ?250 ans? guilloché, applied yellow gold faceted baton indexes and Roman half-hour numerals, outer minute track, subsidiary dials for the day and date, power-reserve sector, applied Seal of Geneva. Yellow gold frosted and polished éventail hands. M. Cal. 2475, stamped with the Seal of Geneva, rhodium-plated, fausses cotes decoration, 27 jewels, straight-line lever escapement, free-sprung monometallic balance with a frequency of 4Hz (28,800A/h) adjusted to 5 positions, shock-absorber, selfcompensating fl at balance-spring, hack mechanism, unidirectional guilloché 22K gold rotor. Dial, case and movement signed. Diam. 40 mm. Thickness 12.5 mm.
Grading System:
CHF 20,000 - 30,000
USD 21,000 - 32,000
EUR 16,000 - 25,000
Sold: CHF 25,000
C. Two-body, square, polished and brushed, inclined bezel, outset corners forming the lugs, transparent back with four screws, sapphire crystals. D. Matte gray with applied white gold baton indexes and Roman quarter-hour numerals, subsidiary seconds. White gold sword hands. M. Cal. 1017, rhodium plated, fausses cotes decoration, 21 jewels, straight-line lever escapement, monometallic balance adjusted to 5 positions, fl at balance spring, shock absorber. Dial, case and movement signed. Dim. 35 x 32 mm. Thickness 7 mm.
Grading System: AA
CHF 7,000 - 9,000
USD 7,500 - 9,500
EUR 6,000 - 7,500
Sold: CHF 8,750
C. Three-body, solid, polished, transparent case back, stepped inclined bezel, teardrop lugs, sapphire crystals. D. Matte silver with applied white gold baton indexes and Arabic numerals, guilloche subsidiary seconds and 30-minute register dials, outer tachometer graduation. White gold baton hands. M. Cal. 1140, rhodium-plated, fausses cotes decoration, 21 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, self-compensating Breguet balance spring, micrometer regulator. Dial case and movement signed. Diam. 37 mm. Thickness 11 mm.
Grading System: AAA
CHF 11,000 - 16,000
USD 12,000 - 17,000
EUR 9,000 - 13,000
Sold: CHF 13,750
C. Three-body, polished and brushed, case back with 8 screws, fl uted Art Deco lugs, sapphire crystal. D. Guilloché gray with applied pink gold radial Arabic numerals and dart indexes, subsidiary dials for the seconds, the 12-hour and 30-minute registers, large double aperture for the date at 12. Polished and frosted pink gold lozenge hands. M. Cal. 1137, rhodium-plated, fausses cotes decoration, 37 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating fl at balance spring, 18K gold rotor. Dial, case and movement signed. Dim. 36.5 x 53 mm. Thickness 13 mm.
Grading System: AA
CHF 12,000 - 18,000
USD 13,000 - 20,000
EUR 10,000 - 15,000
Sold: CHF 20,000
C. Two-body, solid, polished and brushed, stepped rounded bezel, straight lugs, sapphire crystal. D. Champagne with applied yellow gold bâton indexes, outer minute divisions, subsidiary dials for the days of the month, of the week, the months, the leap year, sector for the age of the moon, aperture for the phases of the moon. Yellow gold baton hands. M. Cal. 1120/1, stamped with the Seal of Geneva quality mark, rhodium-plated, fausses cotes decoration, 36 jewels, straight-line lever escapement, monometallic balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, self-compensating fl at balance spring, 21K gold rotor segment. Dial, case and movement signed. Diam. 36 mm. Thickness 7 mm.
Grading System: AA
CHF 10,000 - 15,000
USD 11,000 - 16,000
EUR 8,500 - 12,000
Sold: CHF 13,750
C. Two-body, solid, polished, stepped bezel, fl ared lugs, transparent case back, sapphire crystals. D. Black guilloche with applied yellow gold baton indexes and Arabic numerals, subsidiary seconds and 30-minute register dials, outer tachometer graduation. Yellow gold baton hands. M. Cal. 1140, 21 jewels, rhodium-plated, fausses cotes decoration, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating Breguet balance spring, swan-neck micrometer regulator. Dial case and movement signed. Diam. 37 mm. Thickness 11 mm. Property of a Dutch collector
Grading System: AAA
CHF 10,000 - 15,000
USD 11,000 - 16,000
EUR 8,500 - 12,000
Sold: CHF 11,875
C. Two-body, solid, polished, stepped curved bezel, transparent case back, straight and curved lugs, sapphire crystals. D. Guilloché silver, outer plain reserve with applied white gold dart indexes, a circular aperture exposing the triangular minute indicator, aperture for the jumping-hours in black Arabic numerals. M. Cal. 1120/2, rhodium plated, fausses cotes decoration, 38 jewels, straight line lever escapement, monometallic balance adjusted to heat, cold, isochronism and 5 positions, shock-absorber, self-compensating fl at balance spring, 21K gold rotor segment. Dial, case and movement signed. Diam. 36 mm. Thickness: 7 mm. Property of a Dutch collector
Grading System: AAA
CHF 10,000 - 15,000
USD 11,000 - 16,000
EUR 8,500 - 12,000
Sold: CHF 21,250