Watch Facts

Perpetual calendar, Tourbillon, split second chronograph, astronomical moon-phase and a movement that uses fusée and chain. This is the holy grail Lange. Lange caliber L133.1, hand-wound with 36 hour power reserve, 684 components. Platinum PT950 case in 43mm. Limited to 50pcs, priced at 480,000.00€

Case is 47mm with a thickness of 14.5mm, in red or white gold, sapphire crystal front and back, water resistant to 10m. Dial side architecture in 5N gold with openworked bridges, sunray black-rhodium elements and polished blackened gold indexes. Movement is in-house manual-winding caliber 15GSQ beating at 4Hz with 67 jewels and 1, 053 components, combining grande and petite sonnerie with two selectable four-note melodies (Westminster and “Blancpain”), minute repeater, flying tourbillon with silicon balance spring and a fully integrated retrograde perpetual calendar with twin power-reserve indicators. Power reserve is 96hrs for timekeeping with around 12hrs of striking autonomy in grande sonnerie mode. Limited to roughly 2 pieces per year, built to order and highly customizable. Priced at approx 1.7m CHF

Case is 56.5mm with a thickness of 23.5mm in 18k “Brequet Gold”, sapphire crystal, dust and moisture resistant only. Case band, bow and rear cover are decorated with Quai de I’Horloge guilloché inspired by the Turgot map of Paris, the back covered with Bleu de France grand feu enamel and a raised Breguet “B”, while the front lid is hand-engraved with the River Seine and Brequet’s historic Quai de I’Horloge workshop, the river itself picked out in Bleu de France enamel. Regulator-style dial in Breguet Gold with Quai de I’Horloge guilloché and a white enamel hours insert with pantograph-engraved secret signature, plus blued (PVD) tourbillon bridge and hammers and two prominent chiming gongs visible on the dial side.Movement is manual-winding caliber 508 GS running at 18, 000bph with around 539 components and 43 jewels, combining tourbillon, grande and petite sonnerie, minute repeater and a magnetic strike governor; the going train winds clockwise and the strike train counterclockwise, with the movement inverted so the strike works are on full display behind a sapphire cuvette. Power reserve is 56hrs for timekeeping with around 36hrs of striking in grande sonnerie mode, using white gold gongs fixed directly to the extensively hollowed Brequet Gold case, which still contains about 400g of gold to act as a resonant body. Delivered on an 18k Brequet Gold chain with matching guilloché clasps, in a presentation box made from “Marie-Antoinette oak” with a spruce resonance tray from the Risoud forest.Made to order in extremely low numbers. Price on request.

Case is 41.6mm diameter, 18k pink gold, sapphire crystal display case back secured by 6 screws. Dial is grey, semi-skeletonised. Movement is manual winding, cal. 9897, 37 jewels, with perpetual calendar, minute repeating tourbillon, and Westminster carillon chimes. With: 18k pink gold Girard-Perregaux folding clasp, Girard-Perregaux Certificate of Authenticity, instruction manual, product literature and presentation box with outer packaging. Remark: Unique, circa 2004. Estimate CHF 80,000 – CHF 160,000. Sold for CHF 108,799 at Sothebys Auctions May 10 2026 Geneva

• 18k white gold case in 43mm.
• Automatic calibre 950 with winding rotor positioned between the perpetual calendar and minute repeater mechanisms.
• The gongs are extra long and travels between the dial side to the movement side; maximizing the space that boosts its capacity for the sound transmission.
• Signature chime innovations of Jaeger-LeCoultre are the square gong cross sections and the articulated “trebuchet” hammers, ensuring the gongs are struck with the greatest impact and the least interference from hammer recoil.
• 50m water resistance Power reserve is at 38hrs Limited to 30pcs.
• Priced at 250,000.00€

• 18k white gold case in 47.7mm.
• Featuring over 20 complications, including five chiming modes, two of which are patented world firsts: an acoustic alarm that strikes the preselected time and a date repeater sounding the date on demand.
• Manual winding Caliber 300 GS AL 36-750 QIS FUS IRM; Strikework isolator indicator.
• Second time zone with day/night indicator.
• Day, date (on both dials), month, leap-year cycle by hands.
• Fourdigit year display in an aperture. 24-hour and minute subdial.
• Reversible case with guilloched hobnail pattern, protected against humidity and dust (not water resistant).
• Time side: blue opaline, gold applied Breguet numerals, hand-guilloched hobnail center.
• Calendar side: blue opaline.
• 18K solid gold dial plates.
• Priced at 2,300,000.00 CHF

Harmony Ultra-Thin Grande Complication Chronograph (2015). Platinum case for this model is 42mm wide and 8.4mm thick. The movement is the in-house Caliber 3500, with 459 parts at just 5.2mm thick. Automatic movement, but with a peripheral rotor; making the movement completely clear of any obstruction when viewed. Limited to 10 pcs. 51 hours power reserve, platinum PT950 case, priced at US$369,200.00

Rotonde de Cartier Grande Complication Skeleton (2015) It’s a perpetual calendar, a flying tourbillon, an astrorégulateur and a minute repeater. The movement is an in-house automatic calibre 9406 MC with 578 parts, 47 jewels and micro-rotor. The movement beats at 21,600 vph and with a 50 hours power reserve. Platinum case in 45mm. Priced at US$620,000.00

BOVET 1822 RÉCITAL 20 ASTÉRIUM (2023). White Gold and Red Gold case, 46mm diameter, 18.3mm thickness, leather strap with pin buckle, water resistance up to 30 meters. Manual-winding mechanical movement with a 240-hour power reserve. Functions include hours, minutes, seconds, date, day, month, power reserve indicator, retrograde minutes, tourbillon, equation of time, and a special escapement. Annual calendar tracking summer and winter equinox. Reference: R20N005/1/PU. Launched in October 2022, part of the Dimier collection, limited to 1 piece. Priced at 532,432 CHF.  This watch is the winner of the Calendar & Astronomy prize at the 2023 GPHG

Case is 43mm, platinum. Dial is silvered. Movement is manual with minute repeating split seconds chronograph and tourbillon. With: platinum Audemars Piguet deployant clasp, Audemars Piguet Certificat d’Origine et de Garantie, Audemars Piguet Certificat d’Authenticité et d’Exclusivité, product literature, key and presentation box. Remark: Very rare and highly complicated, limited edition of 20 pieces, case number E25828, manufactured in 1999. Estimate HKD 800,000 – HKD 1,600,000. Sold for HKD 1,524,000 at Christies Auctions May 27 2026 Hong Kong