This is my deep insight into the Patek Philippe Grandmaster Chime Ref. 5175

 

These are the Patek Philippe Grandmaster Chime Ref. 5175 patents and innovations

 

Patent: Alarm mechanism with time strike

A mechanism that acoustically indicates a pre-set alarm time with hour, quarter-hour, and minute strikes using the chiming mechanism of the minute repeater.

Patek Philippe Grandmaster Chime Ref. 5175. Alarm mechanism with time strike
Patek Philippe Grandmaster Chime Ref. 5175. Alarm mechanism with time strike

 

Patent: Isolation of the Grande Sonnerie in the Silence mode

A mechanism that totally uncouples the Grande Sonnerie from the movement when the Silence mode is selected, eliminating friction and thus power consumption.

Patek Philippe Grandmaster Chime Ref. 5175. To protect complicated timepieces against damage caused by inadvertent manipulations, the manufacture’s engineers devised clever "isolators" that interrupt the flow of power between individual mechanisms or block certain functions while others are active.
Patek Philippe Grandmaster Chime Ref. 5175. To protect complicated timepieces against damage caused by inadvertent manipulations, the manufacture’s engineers devised clever “isolators” that interrupt the flow of power between individual mechanisms or block certain functions while others are active.

 

Patent: Selection of strikework operating mode

Mechanism that allows the automatic time strike to be selected or disabled with a single slide switch: Grande Sonnerie, Petite Sonnerie or Silence. Formerly, two separate switches were needed to make these settings.

Patek Philippe Grandmaster Chime Ref. 5175 Caliber GS AL 36-750 QIS FUS IRM.
Patek Philippe Grandmaster Chime Ref. 5175 Caliber GS AL 36-750 QIS FUS IRM.

 

Patent: Date repeater

Mechanism that obtains date information from the perpetual calendar and forwards it to the repeating mechanism. Manufacture president Thierry Stern is the inventor.

Patek Philippe Grandmaster Chime Ref. 5175. Mechanism that obtains date information from the perpetual calendar and forwards it to the repeating mechanism
Patek Philippe Grandmaster Chime Ref. 5175. Mechanism that obtains date information from the perpetual calendar and forwards it to the repeating mechanism

 

Patent: Reversible wristwatch case

Wristwatch case with rotating and latching devices in the lugs, allowing it to be turned along the axis from 12 to 6 o’clock and locked in either of 2 positions.

Patek Philippe Grandmaster Chime Ref. 5175. The round double-face case: a grand reversible construction
Patek Philippe Grandmaster Chime Ref. 5175. The round double-face case: a grand reversible construction

 

Patent: Mechanism for a four-digit year display

Mechanism that automatically synchronizes the four-digit year display with the leap-year cycle and allows convenient correction of both displays in either direction.

Patek Philippe Grandmaster Chime Ref. 5175. Mechanism for a four-digit year display
Patek Philippe Grandmaster Chime Ref. 5175. Mechanism for a four-digit year display
Patek Philippe Grandmaster Chime Ref. 5175. It features four sub dials with analog displays grouped around the gold-framed four-digit year display in the middle.
Patek Philippe Grandmaster Chime Ref. 5175. It features four sub dials with analog displays grouped around the gold-framed four-digit year display in the middle.

 

Innovation: The strikework differential

An innovative masterpiece of micromechanical engineering (not patented): the differential between the strikework double barrels and the two strikework mechanisms for the Grande Sonnerie (incl. minute repeater and alarm) and the date repeater. It has a diameter of 7.2 mm and consists of 19 separate parts, one of which is an 11-part ball bearing with 7 balls with a diameter of 0.3 mm each. Despite its small size, it is robust enough to transmit the torque of the strikework barrels that exceeds 1700 gmm.

 

Patek Philippe Grandmaster Chime Ref. 5175. The strikework differential
Patek Philippe Grandmaster Chime Ref. 5175. The strikework differential
Patek Philippe Grandmaster Chime Ref. 5175. The strikework differential
Patek Philippe Grandmaster Chime Ref. 5175. The strikework differential

 

 

>>> Continue reading my deep insight into the Patek Philippe Grandmaster Chime Ref. 5175 on page 7 >>>

 

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11 Comments

  • Many thanks Alex , this is the best watch I have ever seen ,and without you Alex we would have never seen it , Thanks again mate.

    Leon Marshall

  • It’s a very fabulous Watch! What about the feature Crown position indicator (RAH)?

    Regards
    Yours
    Max

  • this is an accomplishment of epic proportions. kudos to Thierry Stern and the entire Patek team. they have, once again, significantly raised the bar of haute horlogerie from every conceivable angle from concept design all the way through to case fabrication and assembly.

  • There is a saying, “We did it because we could.” The watch is a tour de force in its every aspect. As you say, “Chapeau!” The dimensions are small for all the mechanical complexity. The casework is of another era beautifully and deeply carved.
    I am still happy with PP Calatrava in 18K yellow gold.

    Thank you, Alexander!

  • Alex ,why are they giving out all the details of this unique watch ?
    It makes it easier for the competition to duplicate a similar piece

    • Though Patek Philippe is giving out all details of this truly awe-inspiring watch, how many watch brands have capability to create such a stunning timepiece?

      Well Roger, I think very few watch companies can create some watch that is similar to Patek Philippe Grandmaster Chime Ref. 5175. Maybe, Lange, JLC and Vacheron Constatin can create something like this.

Comments are closed.