Blancpain Le Brassus GMT Perpetual Calendar | 4277-3446-55BDA

  • Collection: Blancpain
  • Model reference: 4277-3446-55BDA
  • Case/Size: Platinum, 42mm
  • Dial: Brown
  • Movement: Automatic-winding
  • Functions: GMT/World Time, Day, Date, Month, Moon Phase, Perpetual Calendar
  • Specificity: Limited Edition
  • Condition: Mint
Manufacturer’s International Warranty

All the watches we offer come with a 2 year warranty but this timepiece enjoys a guarantee covered by the manufacturer, valid internationally at any flagship store or official retailer carrying the respective brand. If you wish we are happy to assist you handling this task. Scope of coverage subject to manufacturer’s policy, please contact us for more information.

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Blancpain stunned the world when it presented the world’s thinnest self-winding chronograph and the smallest minute repeater of its time, when it re-launched in 1987 under the leadership of JC Biver.
n 1991, Blancpain presented the most complicated wristwatch in the world at the time: the 1735 Grande Complication. This exceptional timepiece featured a one-minute tourbillon, a perpetual calendar with moon phase, a co-axial split seconds chronograph and a minute repeater. Only 30 pieces wre made between 1991 and 2009.


Capitalizing on the brand’s rich heritage and the technical mastery, in 2006 Blancpain launched a special timepiece with just the perpetual calendar as a complication.

It is this extremely rare Le Brassus Quantième Perpétuel GMT Reference 4277-3446-55bda limited to 150 pieces only.
There are a few watches that bridge the gap between vintage and modern. Old school aesthetic, with modern reliability. This magnificent timepiece does just that.

It is crafted in a 42mm platinum case which is fairly slim at just 13.3mm in thickness, with a doubled-stepped bezel. It offers a 100m water resistance, which is quite impressive for a perpetual calendar.
What stands out at first instance is the beautiful Havana dial, which acts as a backdrop for the neatly laid out functions on the dial.

The perpetual calendar is easy to read with the months and leap year indicator within a sub-dial at 12 o’clock, date at 3 o’clock, moonphase indicator at 6 o’clock and the days of the week at 9 o’clock. The GMT / 24HR ring encircles the sub-dials, just under the roman hour markers in white gold, and all functions marked in white, on a rich brown sunburst backdrop. The patented correctors for the functions are hidden under the lugs. All of the hands are crafted in white gold, adding to the richness of this beauty.

Seen through the case-back is the F. Piguet / Manufacture Blancpain calibre featuring 2 mainsprings offering a 100hr power reserve and a hand-engraved winding mass. The finish on the movement is impeccable with mirrored anglage on every edge.

Offered on a brown alligator leather strap which is soft, yet sturdy to hold the watch firmly on the wrist while offering great wearer comfort. It comes with a platinum deployant clasp.



Blancpain – bio

Blancpain was founded in 1735, in Villeret by Jehan-Jacques Blancpain, and is considered to be the oldest watch brand in the world.
The brand was continuously in operation and within the Blancpain family for almost 200 years, until in 1932 when the 7th generation heir Frédéric-Emile Blancpain passed away and the business was bought by two of his closest staff members, who continued the operations through both World Wars.
The legendary ‘Fifty Fathoms’ was launched in 1953, making it the world’s first modern diving watch with three patents including the innovative double sealed crown system, the caseback seal system and the unidirectional bezel with a blocking mechanism which would prevent accidental rotation of the bezel.
In terms of aesthetics, Fifty Fathoms is one of the most iconic timepieces today.
In 1961 Blancpain merged into the largest Swiss watch group of the time, the Société Suisse pour l’Industrie Horlogère (SSIH), joining Omega, Tissot and Lemania, and was producing over 220,000 watches annually by 1971.
The brand was put into hibernation during the quartz crisis and in 1983, it was bought by the legendary Jean-Claude Biver.
In the late 80’s, it made a solid comeback by launching back-to-back complications include a triple calendar with moon phases, a perpetual calendar, a minute repeater, a split-seconds chronograph and a tourbillon.
The resurrection was so strong that the SSIH (now Swatch Group) bought back the brand and has had it under its portfolio ever since.

Additional information


Accompanied by a 'Blancpain' international warranty card, product literature and a presentation box