Watch Facts

Tudor Black Bay GMT for ONLY WATCH (2021). 41mm in aged stainless steel case. Manufacturer automatic Caliber MT5652 with 70hrs power reserve. Integrated GMT function. Water resistance to 200m. Silicon balance spring. Master Chronometer-certified by METAS. Unique piece Offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021 Estimate 4,000-8,000CHF Hammered at CHF 650’000, 80-times above the estimate

• Patek Philippe Grandmaster Chime reference 6300A-010 was created especially for Only Watch 2019.
• Stainless steel 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.
• Stainless steel reversible case with guilloched hobnail pattern, protected against humidity and dust (not water resistant).
• Time side dial in rose gold, with gold applied Breguet numerals.
• Calendar side in black ebony.
• 18K solid gold dial plates.
• Unique piece Estimate 2,500,000 to 3,000,000 US$

Gronefeld 1941 Remontoire Only Watch (2019). Stainless steel case in 39.5mm. The movement is a manual winding caliber that features an eight seconds constant force mechanism; ensuring the force serving the balance wheel does not fluctuate. From the mainspring being fully wound to the last minute of the power reserve, the delivery of the energy never fluctuates. The result is that the amplitude and rate remain consistent, leading to superior precision. This Only Watch edition has a frosted middle case with its unique frosted dial. A blue governor is visible at 9 o’clock and spins every eight seconds when the remontoire constant force mechanism is functioning. Power reserve 36 hours. Unique piece Estimate at 48,000-69,000CHF Hammered at 70,000CHF

Tantalum case in 42mm. Using an automaton powered by the Octa movement, the minutes are driven by a rotating disk at 12; the mobile fingers indicating the hours by its position. Automatic FFC caliber 1300.3 in 18k rose gold. Unidirectional winding rotor, power reserve is at 120hrs. Unique piece To be offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021 Estimated at 300-400k CHF Sold for 4,500,000CHF

Case is in grade 5 titanium at 43mm. Manual winding base movement by De Bethune, calibre DB2105 – display module by Urwerk with wandering hour satellite. Titanium balance wheel with white gold inserts – De Bethune balance spring – silicon escape wheel. Spherical moonphase. Power reserve is at 4 days. Unique piece Estimate 120,000 to 150,000CHF

40mm Tantalum case, 5.80mm thick, tantalum crown. Automatic manufacture BVL Calibre 305, hours and minutes, retrograde date, day, month and retrograde and leap year. Power reserve is 60hrs Unique piece To be offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021 Estimate 80,000-120,000CHF Sold for 220,000CHF

Case is in sapphire Crystal at 45mm. Manual winding movement calibre BR-CAL.206. Moving skull when wound by hand. Crystal Sapphire with anti-reflective coating. Water-resistance 50 metres. Unique Piece To be offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021 Estimate 90,000-110,000CHF Sold for 220,000CHF

Sandblasted titanium case in 39mm. Automatic Calibre 2121. Power reserve is 40hrs. Unique piece offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021 Estimate 160,000-320,000CHF Hammered 3,100,000CHF

• Edward Sexton, one of the world’s finest tailors, is partnering with Andersen to present a “Unique Piece”.
• Bi-colour red and white gold case with flutes, manufactured by hand in 40mm.
• Automatic movement Frédéric Piguet 11.50 dual barrel.
• White gold “Losanges Magiques” (magic lozenge) hand guilloché dial with two windows.
• One window at 12 o’clock to display days of the week, Dimanche, Montag, Tuesday, Mercoledi, Jueves, Joum’a, Shabbat.
• The other at six o’clock to display the date.
• “A” shaped ANDERSEN Genève hands in red gold.
• Power reserve is 72 hours Unique piece Offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021.
• Estimate 60,000-70,000CHF Hammered at CHF 100,000CHF

Breguet Type XX Only Watch 2021 flyback chronograph (2021). Stainless steel case in 38.30 mm, thickness 13.90 mm. Bidirectional graduated rotating bezel with triangular markings for flight calculations. Hand winding fly back chronograph movement Cal. Valjoux 235. Unique piece To be offered at Only Watch 2021 auctions conducted by Christie’s on Nov 6, 2021 Estimate 35,000-50,000CHF Sold for 250,000CHF