Introduction
This manual provides essential instructions for the proper setup, operation, and maintenance of your Frederique Constant Highlife Automatic COSC FC-303N4NH6B timepiece. Please read this guide thoroughly to ensure optimal performance and longevity of your watch.
Setup
1. Unboxing and Initial Inspection
Carefully remove your watch from its packaging. Inspect the watch for any visible damage or protective films. Remove all protective films from the crystal, case, and bracelet before use.

Image: The Frederique Constant Highlife watch presented in its dark green branded box, indicating careful packaging.
2. Initial Winding
Your Frederique Constant Highlife watch is equipped with an automatic mechanical movement. Before wearing, it is recommended to manually wind the watch to ensure sufficient power reserve. To do this:
- Unscrew the crown (if applicable) and pull it out to position 1 (winding position).
- Turn the crown clockwise approximately 20-30 times. This will build up an initial power reserve.
- Push the crown back in and screw it down securely to ensure water resistance.
3. Setting Time and Date
To set the time and date:
- Unscrew the crown (if applicable) and pull it out to position 2 (date setting position). Turn the crown to set the date. Avoid setting the date between 9 PM and 3 AM, as this can damage the movement.
- Pull the crown out to position 3 (time setting position). The seconds hand will stop. Turn the crown to set the correct time. Ensure you differentiate between AM and PM when setting the time, especially for the date change mechanism.
- Once the time and date are set, push the crown back in and screw it down firmly against the case to maintain water resistance.

Image: A close-up view of the Frederique Constant Highlife watch, highlighting the crown on the side of the case, used for winding and setting.
4. Adjusting the Bracelet
The stainless steel bracelet can be adjusted by adding or removing links. This procedure should ideally be performed by a qualified watchmaker or jeweler to prevent damage to the bracelet or clasp. The watch features a push-button deployment clasp for secure fastening.

Image: A detailed view of the push-button deployment clasp on the Frederique Constant Highlife watch's stainless steel bracelet.
Operating Your Watch
Automatic Movement
Your Frederique Constant Highlife watch is powered by an automatic mechanical movement (Caliber FC-303). This movement is wound by the natural motion of your wrist. When worn regularly (approximately 8-10 hours a day), the watch will maintain its power reserve. If the watch is not worn for an extended period, it may stop. In this case, manually wind it as described in the 'Initial Winding' section before wearing.
COSC Certification
This timepiece is COSC (Contrôle Officiel Suisse des Chronomètres) certified, indicating that its movement has undergone rigorous testing by an independent Swiss institute and meets strict precision standards. This certification guarantees exceptional accuracy for your watch.
Water Resistance
The watch has a water resistance rating of 100 meters (10 ATM). This makes it suitable for swimming and snorkeling. However, it is not recommended for diving. Always ensure the crown is fully screwed down before exposing the watch to water. Do not operate the crown or pushers while the watch is wet or submerged.
Maintenance
Cleaning
To clean your watch, use a soft, damp cloth. For the stainless steel case and bracelet, a mild soap solution can be used, followed by rinsing with clean water and drying thoroughly with a soft cloth. Avoid using harsh chemicals or abrasive materials, which can damage the watch's finish or sapphire crystal.
Regular Servicing
Like any precision instrument, your mechanical watch requires periodic servicing to ensure its accuracy and longevity. It is recommended to have your Frederique Constant watch serviced by an authorized service center every 3-5 years. This service typically includes cleaning, lubrication, and adjustment of the movement, as well as replacement of seals to maintain water resistance.
Storage
When not wearing your watch, store it in a dry, cool place, away from direct sunlight and extreme temperatures. If storing for an extended period, a watch winder can be used to keep the automatic movement running and prevent lubricants from congealing.
Avoiding Magnetic Fields
Strong magnetic fields can affect the accuracy of mechanical watches. Keep your watch away from sources of strong magnetism, such as speakers, refrigerators, and certain electronic devices.
Troubleshooting
Watch Not Running
If your watch has stopped, it likely needs to be wound. Manually wind the watch by turning the crown clockwise 20-30 times. If the watch still does not start after winding and gentle shaking, or if it stops frequently, it may require servicing.
Incorrect Time or Date
Refer to the 'Setting Time and Date' section to correctly adjust your watch. Ensure the crown is fully pulled out to the correct position for setting. If the time or date repeatedly becomes incorrect, the movement may need inspection.
Condensation Under Crystal
If you notice condensation under the sapphire crystal, it indicates that moisture has entered the watch. This requires immediate attention from an authorized service center to prevent damage to the movement. Do not attempt to dry the watch yourself.
Specifications

Image: The transparent case back of the Frederique Constant Highlife watch, revealing the intricate automatic mechanical movement.
| Model Number | FC-303N4NH6B |
| Movement | Automatic, COSC Certified (Caliber FC-303) |
| Case Material | Stainless Steel |
| Case Diameter | 41 mm |
| Case Thickness | 11 mm |
| Crystal | Sapphire Crystal |
| Dial Color | Blue |
| Strap Material | Stainless Steel |
| Band Width | 24 mm |
| Clasp Type | Push Button Deployment Clasp |
| Water Resistance | 100 Meters (10 ATM) |
| Weight | 162 Grams |
| Product Dimensions | 7.87 x 5.91 x 1.97 inches |
Warranty
Your Frederique Constant Highlife Automatic COSC FC-303N4NH6B watch comes with a limited warranty. Please refer to the warranty card provided with your purchase for specific terms, conditions, and duration of coverage. The warranty typically covers manufacturing defects but does not cover damage resulting from improper use, accidents, or unauthorized repairs.
Support
For any questions, service requests, or technical assistance regarding your Frederique Constant watch, please contact an authorized Frederique Constant service center or visit the official Frederique Constant website for a list of authorized dealers and service locations.





