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Black Tag Watches
Address: 20900 NE 30th Ave 10th Floor.
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Aventura FL 33180 USA
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The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
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Pre-Owned Breguet Classique Moon Phase Power Reserve 18K White Gold — Box & Papers (Ref. 7787BB/12/9V6)
Abraham-Louis Breguet died in 1823. Two centuries later, the watches that carry his name still argue with him — silicon escapements, hand-hammered moon discs, the same engine-turning he used to fingerprint a dial.
Available now at Black Tag Watches (Aventura, Florida), this 2012 example — reference 7787BB/12/9V6 — is cased in 18K white gold and offered complete with its original Breguet presentation box, instruction booklet, and warranty certificate dated 2012.
What Is the Breguet Classique Moon Phase Power Reserve?
The Most Direct Lineage in Modern Watchmaking
The pre-owned Breguet Classique Moon Phase Power Reserve 7787BB sits at the top of the most directly historical lineage in contemporary horology. The Maison Breguet, founded by Abraham-Louis Breguet in Paris in 1775, is the source of an unusually long list of inventions still in daily use across the industry: the tourbillon, the pare-chute shock absorber, the gong spring for repeaters, the perpetual self-winding watch, the Breguet overcoil hairspring, the open-tipped moon hands that bear his name, and the engine-turned guilloché dial as a finishing language. The 7787 is the contemporary expression of those instincts applied to a 39mm white-gold dress watch — not as revival or pastiche, but as unbroken continuity.
The 591 DRL and Breguet's Silicon Programme
The 2012 production date places this example at the centre of Breguet’s silicon programme — the period when the maison, under Swatch Group ownership, became one of the principal advocates of silicon in modern watchmaking alongside Patek Philippe and Ulysse Nardin. For collectors of pre-owned Breguet Classique watches, that context matters: the calibre 591 DRL is not an updated movement with a silicon component added for marketing purposes. It is a manufacture calibre rebuilt around silicon escapement and balance-spring as a considered engineering position.
Dial & Case Design: Guilloché Silver, Coin-Edged White Gold
Case Proportions and Breguet's Signature Caseband
The 39mm case is rendered in 18K white gold, standing 10.5mm thick, and finished with the coin-edged caseband that has been a Breguet signature since the late eighteenth century. The proportions are deliberate: large enough to carry the guilloché dial in full, thin enough to disappear under a cuff, and finished consistently with the maison’s two-century argument that a dress watch should announce itself through quality of surface rather than scale of case.
The Engine-Turned Dial and Its Three Patterns
The silver dial is hand-engine-turned across multiple distinct fields, each pattern selected to differentiate its function: a fine clous de Paris in the centre, a wider barleycorn at the chapter ring, and a separate field for the off-centred power reserve fan at 4 o’clock. At 12 o’clock sits a blue lacquered moon phase disc with a hand-hammered gold moon and surrounding stars. The hands are the slim open-tipped Breguet hands; the numerals are the slanted Breguet Arabic numerals he introduced in the 1790s. A secret signature, etched and visible only at the correct angle, sits on the dial as it has on every authentic Breguet since the maison began signing dials in 1796.
Movement: Manufacture Breguet Calibre 591 DRL — Silicon Escapement
What Silicon Means in the Context of the 591 DRL
Inside the Breguet Classique 7787BB is the manufacture calibre 591 DRL — an automatic movement of 25 jewels and 221 components, beating at 4 Hz with an approximate 38-hour power reserve. Both the straight-line lever escapement and the flat balance-spring are produced in silicon: non-magnetic, requiring no lubrication on the escapement working surfaces, and offering better long-term temporal stability than traditional steel components. For a buyer evaluating pre-owned dress watches on technical merit, the silicon programme is a meaningful upgrade in long-term service economics — fewer lubrication intervals, greater resistance to magnetic fields, and improved rate stability over time.
Finishing Front and Back
The calibre 591 DRL is signed and numbered, and visible through the sapphire display caseback secured by screws. The 22-carat gold oscillating weight is finished with a barleycorn guilloché pattern — the same engine-turning vocabulary as the dial, applied consistently at the back of the movement. It is a small detail, and characteristic of how Breguet treats finishing: as a discipline that does not stop at the caseback.
Movement Specifications
Specification
Detail
Calibre
Breguet 591 DRL, automatic
Components
221 parts, 25 jewels
Frequency
28,800 vph (4 Hz)
Power reserve
~38 hours
Escapement
Silicon lever and escape wheel
Balance spring
Silicon
Rotor
22K gold, barleycorn guilloché
Caseback
Sapphire display, screwed
Condition, Provenance & Documentation
Full Original Delivery — One Departure
Provenance is full with one noted departure. The watch is offered with its original Breguet presentation box, instruction booklet, and warranty certificate dated 2012. The strap is aftermarket rather than original Breguet — a straightforward and inexpensive replacement available through any authorised Breguet boutique should the buyer wish to restore the original specification. The buckle, importantly, is the original Breguet 18K white gold folding clasp, which is the meaningful provenance signal at the strap level.
Condition and Accessories
Detail
Information
Condition
Mint
Box
Original Breguet presentation box
Papers
Instructions + warranty, dated 2012
Strap
Black alligator, aftermarket
Buckle
Original Breguet 18K white gold folding
Full Specifications — Breguet Classique Moon Phase 7787BB/12/9V6
Specification
Detail
Brand
Breguet
Collection
Classique
Reference
7787BB/12/9V6
Year
2012
Case
18K white gold, 39mm, 10.5mm thick
Caseband
Coin-edged
Dial
Silver guilloché, multiple engine-turned patterns
Complications
Moon phase at 12, power reserve at 4
Hands
Open-tipped Breguet moon hands
Movement
Breguet calibre 591 DRL, automatic
Components
221 parts, 25 jewels
Frequency
28,800 vph
Escapement
Silicon
Balance spring
Silicon
Power reserve
~38 hours
Strap
Black alligator, aftermarket
Buckle
Original 18K white gold folding
Condition
Mint
Box & Papers
Full set, dated 2012
Why Buy a Pre-Owned Breguet Classique 7787BB?
Undervalued Relative to the Engineering Inside
The 7787 has held its character in the secondary market in the way that Breguet’s most disciplined Classique references tend to: quietly, without speculation, and largely undervalued relative to the engineering inside. Current Breguet retail on the white-gold 7787 with a guilloché silver dial sits well into five figures; pre-owned examples with full original delivery — particularly from the early 2010s, when the calibre 591 DRL was at the centre of the maison’s silicon programme — present a clear opportunity for collectors who measure value by movement and finishing rather than by brand momentum.
Auction Trajectory and Long-Term Value
Auction results from Christie’s, Sotheby’s, and Antiquorum over the past decade trace a steady line: the 7787 behaves like a serious object rather than a speculative one. Against contemporary Breguet retail and against the broader category of white-gold dress watches with moon phase and power reserve, this 2012 example offers entry into the most directly historical lineage in modern watchmaking at a price that rewards horological literacy. With a full set, an original Breguet folding buckle, and the calibre 591 DRL fully operating, the value proposition is straightforward.
Available at Black Tag Watches — Aventura, Florida
Black Tag Watches is a pre-owned luxury watch dealer based in Aventura, FL, specialising in rare, certified, and fully documented timepieces from the world’s leading Swiss manufactures, including Breguet.
View the Breguet Classique Moon Phase Power Reserve — Full Details & Pricing
An engine-turned, silicon-escapement Classique from the house that invented most of what modern watchmaking still measures itself against.
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