Bridges 99290B52P951-BA6A - Wristwatch Girard-Perregaux - Free user manual and instructions

Brand	Girard-Perregaux
Model	Bridges 99290B52P951-BA6A (Planetarium Tri-Axial Tourbillon)
Product Type	Luxury watch (haute horlogerie)
Case Material	Stainless steel or precious metal (inferred from luxury brand)
Case Diameter	48.00 mm
Case Height	18.66 mm (21.52 mm with domes)
Crystal	Antireflective sapphire with three-part dome
Case Back	Transparent sapphire, secured by 6 screws
Water Resistance	30 meters (3 ATM)
Movement	Manual mechanical, calibre Girard-Perregaux GP09310
Power Reserve	Approximately 60 hours
Frequency	21,600 vibrations per hour (3 Hz)
Jewels	42
Number of Components	388 (movement) + case parts
Functions	Hours, minutes, tri-axial tourbillon, moon phase indicator, day/night indicator (24-hour world time)
Tourbillon	Tri-Axial: inner carriage (1 rpm), second axis (30 sec), third axis (2 min)
Moon Phase	Astronomical, micro-painted disc; correction required every 122 years
Day/Night Indicator	Rotating globe with 24-hour rotation; set via crown position 1
Crown Positions	0: manual winding; 1: day/night setting; 2: time setting
Winding	Manual, turn crown forward/backward in position 0; do not force when resistance increases
Setting Instructions	Time: crown position 2, turn clockwise; Moon phase: press corrector A; Day/night: crown position 1, align noon with arrow
Cartography	Globe shows world map from 1791 (year of brand creation)
Selenography	Moon disc depicts 17th-century lunar map
Finishing	Hand-crafted with arrow-shaped gold bridges, lyre-shaped tourbillon carriage, engraved eagle symbol

Frequently Asked Questions - Bridges 99290B52P951-BA6A Girard-Perregaux

How do I wind the Girard-Perregaux Bridges 99290B52P951-BA6A?

To wind the watch, keep the crown in position 0 (pushed in). Turn the crown backward and forward. The watch has a power reserve of approximately 60 hours when fully wound. Do not force the crown when resistance increases to avoid damage.

How do I set the time on this watch?

Pull the crown to position 2 (fully pulled out). Turn the crown clockwise to position the hour and minute hands to the desired time. At the time signal, push the crown back to position 0 to restart the watch.

How do I set the moon phase indicator?

Press the corrector A (using the small tool provided) until the full moon is displayed exactly at noon. Find the date of the latest full moon from a moon phase calendar, count the days since then, and press the corrector that many times (one press = one day forward). This watch's astronomical moon phase requires correction only once every 122 years.

How do I set the day/night indicator (world time)?

Pull the crown to position 1 (half pulled out). Turn the crown to rotate the globe until the timezone where it is currently noon aligns with the 12 o'clock arrow indicator. Push the crown back to position 0.

What is the water resistance of this watch?

The watch is water-resistant up to 30 meters (3 ATM). It can withstand splashes and brief immersion, but not swimming or diving. Always ensure the crown is fully pushed in (position 0) to maintain water resistance.

What is the power reserve and how long does it last?

The manual-winding movement offers a minimum power reserve of 60 hours. If fully wound, it will run for over two days without additional winding.

What is a tri-axial tourbillon and why is it special?

A tri-axial tourbillon rotates on three axes (instead of one) to compensate for gravity in all positions. This model features a 1.24-gram, 140-part carriage: inner lyre-shaped carriage (1 rpm), second structure (30 sec per rotation), third structure (2 min per rotation). It showcases Girard-Perregaux's mastery of high-precision watchmaking.

Why does the globe show a world map from 1791?

The hand-painted aluminium globe depicts the world as it was in 1791, the year the Girard-Perregaux brand was created. It serves as a day/night indicator with a 24-hour rotation, where the arrow at 12 o'clock shows the current time zone.

How often do I need to adjust the moon phase?

The astronomical moon phase indicator is extremely precise and requires adjustment only once every 122 years. Under normal use, you will likely never need to correct it. If necessary, use the corrector at 2 o'clock.

What materials are used for the case and crystal?

The case is made from high-quality materials (likely stainless steel or gold, typical of Girard-Perregaux). It is topped with a three-part anti-reflective sapphire crystal with two domes to accommodate the rotating tourbillon and globe. The case back is also sapphire, secured by six screws.

USER MANUAL Bridges 99290B52P951-BA6A Girard-Perregaux

Girard-Perregaux has been defying gravity since 1867 and once again demonstrates its mastery of high-precision movements. The three-dimensional Planetarium watch combines a Tri-Axial tourbillon, a globe performing one full turn in 24 hours and an astronomical moon phase. Cleverly combining technical expertise, iconic design and traditional craftsmanship, it distils the essence of the Girard-Perregaux DNA: arrow-shaped gold bridges, a lyre-shaped tourbillon carriage, sapphire domes and a side opening enabling light to flood into this superbly refined mechanism.

Close-up of a luxury watch with visible branding and globe reflection, no readable text or symbols on the watch face.

A SIDEREAL TRIO

The tourbillon, an ingenious device compensating for the effects of gravity on a mechanical watch, is a speciality of Girard-Perregaux. Lately, the Maison developed an innovative and sophisticated version of it called: the Tri-Axial Tourbillon. As its name implies, this high-speed tourbillon is equipped with a regulator operating on three rotation axes instead of just one. This featherweight 1.24-gram,140-part movement comprises an inner lyre-shaped carriage - a signature of the Maison since 1880 - performing one rotation per minute. It is fitted inside a structure spinning on a second axis in 30-second cycles. Both are in turn incorporated within a third structure revolving once every two minutes on yet another axis. The result is a mesmerising choreography entirely dedicated to conquering precision.

Mechanical gear assembly diagram showing interlocking gears and shafts with blue directional arrows indicating motion (no text or symbols)

REACHING FOR THE MOON

Two astronomical complications join the dance. The globe with its 24-hour rotation provides an instant reading of the time around the world. Set to 12 o'clock (noon), the arrow indicator positioned at the base of the 13 mm-diameter aluminium sphere serves to show where it is daytime on the dial side, and where it is night-time, on the back. Hand-crafted using the miniature painting technique, its cartography depicts the world as it was in 1791, the year the brand was created. The equally micro-painted lunar disc picks up the 17th century selenography at the time the telescope was invented, beautifully matching the blue shades of the rotating globe and reproducing the moon as we see it. Equipped with a precision mechanism, the astronomical moon-phase indicator requires adjustment only once every 122 years, by means of a dedicated corrector at 2 o'clock.

DREAM-LIKE VISIONS

The 48 mm-diameter case is endowed with all the attributes of Girard-Perregaux Fine Watchmaking: an imposing curved case middle, a bevelled bezel and cambered lugs. Water-resistant to 30 metres, it is topped by a three-part sapphire crystal, with two domes providing space for the rotation of the tri-axial tourbillon and the globe. The transparent case-back and the side opening in the case ensure a perfect view of this complex mechanism, literally flooding it with light. Equipped with hand-winding Manufacture GP09310 calibre ensuring a 60-hour power reserve, the Planetarium with Tri-Axial tour-billon drives the hours, minutes, moon-phase and day/night functions. This movement visible through the transparent screw-down back is adorned with meticulous hand-crafted finishing and the iconic signature characteristics of the Maison: arrow-shaped bridges, along with the engraved eagle symbol holding the brand insignia.

Close-up of a luxury watch with mechanical gears and a globe, featuring a compass rose and decorative elements (no readable text or symbols)

INSTRUCTIONS FOR USE

WINDING

Crown in three positions:

O. Manual-winding position (crown not pulled out).

1. Day and night setting position (crown half pulled out).

2. Time setting position (crown fully pulled out).

Manual-winding

Your watch requires regular winding to work normally. To wind, turn the crown backward and forward when it is in position 0). When fully wound, your watch has a power reserve of approximately 60 hours.

Warning: do not force the crown once the resistance increases as this could damage the movement.

SETTING THE TIME

1. Pull your crown out to the time setting position 2).

2. Turn your crown clockwise to position the hour and minute hands at the selected time. At the time signal, push the crown back to position 0). Your watch will restart immediately.

SETTING THE MOON PHASES INDICATOR

1. Press on the corrector A), using the little tool received with your watch, until the full moon is displayed at noon.
2. Find out the date of the latest full moon by using a moon phase calendar.
3. Count the days (X) between the latest full moon and the actual date.
4. As one press on the corrector corresponds to one day forward, push on the corrector X times.

SETTING THE DAY AND NIGHT INDICATOR

1. Pull your crown out to the day and night indicator setting position 1).
2. Turn your crown to position the timezone where it is noon along the 12 o'clock arrow indicator.

Once the globe is correctly placed, push the crown back to position O).

Warning: after making any setting, always return the crown to its original position, to preserve the water resistance of your watch and prevent any damage to the mechanism. To do so, press the crown against the case in position 0).

FUNCTIONS

a | Hours

b | Minutes

c | Tri-axial tourbillon

d | Moon phases indicator

e | Day and night indicator

A) | Moon phases corrector

GIRARD-PERREGAUX GP09310

MANUAL MECHANICAL MOVEMENT

Diameter 36.10 mm (16")

Height 16.87 mm

Frequency 21,600 Vib / hour (3 Hz)

Jewels 42

Number of components 388

Power reserve minimum 60 hours

Displays tri-axial tourbillon, hours, minutes,

moon phases and day/night indicators

CASE

Dimensions 48.00 mm

Height 18.66 mm / 21.52 mm (with domes)

Crystal antireflective sapphire

Case-back sapphire crystal, secured by 6 screws

Water - resistance

30 meters ( 3 ATM )