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

 

The date repeater

A long-standing Patek Philippe customer who in a discussion with the manufacture’s president Thierry Stern mentioned the possibility of a date strike inspired the idea behind this patented global debut.

Now, with the Grandmaster Chime, it becomes sonorous reality when the date repeater is triggered with a pusher. It sounds ten-day intervals with a double high-low strike and the remaining days with a high strike: the 23rd of a month is indicated with a ding-dong ding-dong followed by ding-ding-ding. The strikework mechanism obtains the date information from the perpetual calendar to which one side of the double-face watch is dedicated, and which controls the date displays on both sides of the timepiece.

 

Instantaneous perpetual calendar

The dial of the calendar face is eminently legible. It features four sub dials with analog displays grouped around the gold-framed four-digit year display in the middle.

The month is indicated at 3 o’clock, the date and leap-year cycle at 6 o’clock and the day of the week at 9 o’clock.

The time of day appears at 12 o’clock on the 24-hour and 60-minute sub dial. With the exception of the four-digit year, the calendar displays advance instantaneously and at the same time.

Patek Philippe Grandmaster Chime Ref. 5175. The dial of the calendar face is eminently legible.
Patek Philippe Grandmaster Chime Ref. 5175. The dial of the calendar face is eminently legible.
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.
Patek Philippe Grandmaster Chime Ref. 5175. Instantaneous perpetual calendar
Patek Philippe Grandmaster Chime Ref. 5175. Instantaneous perpetual calendar

 

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

 

As regards the date, this is indispensable because the date repeater must obtain precise information, especially during the minutes before and after midnight.

The perpetual instantaneous date is also displayed on the other face of the watch where it frames the moon-phase display at 6 o’clock. A patent granted for the four-digit year display acknowledges the elegant mechanical solution which allows the year to be conveniently incremented forward or backward with two pushers.

 

Local time and second zone-time

When the crown of the watch points to the right, the owner sees the dial that apart from local time also indicates the time in a second time zone together with a useful day/night indication.

Patek Philippe Grandmaster Chime Ref. 5175. Apart from local time it also indicates the time in a second time zone together with a useful day/night indication.
Patek Philippe Grandmaster Chime Ref. 5175. Apart from local time it also indicates the time in a second time zone together with a useful day/night indication. This is the second zone-time mechanism.

 

The same dial features the power-reserve indicators for the movement and strikework barrels, the position of the winding crown (winding, alarm setting, hand-setting), the selection of the strikework mode (Grande Sonnerie, Petite Sonnerie, or Silence) as well as a bell-shaped aperture for the alarm ON/OFF display and a small round window for the strikework isolator (disabled/enabled) display.

Patek Philippe Grandmaster Chime Ref. 5175. Apart from local time it also indicates the time in a second time zone together with a useful day/night indication.
Patek Philippe Grandmaster Chime Ref. 5175. Apart from local time it also indicates the time in a second time zone together with a useful day/night indication.
Patek Philippe Grandmaster Chime Ref. 5175.
Patek Philippe Grandmaster Chime Ref. 5175.
Patek Philippe Grandmaster Chime Ref. 5175
Patek Philippe Grandmaster Chime Ref. 5175
Patek Philippe Grandmaster Chime Ref. 5175
Patek Philippe Grandmaster Chime Ref. 5175

 

 

>>> Continue reading my deep insight into the Patek Philippe Grandmaster Chime Ref. 5175 on page 4 >>>

 

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.

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