Introduction
This manual provides essential instructions for the proper use, setup, and maintenance of your Frederique Constant FC705N4S6 Slim Line Automatic Watch. Please read this guide thoroughly to ensure optimal performance and longevity of your timepiece.

Image: Front view of the Frederique Constant FC705N4S6 Slim Line Automatic Watch, showcasing its blue dial, silver-tone hands, and sub-dials for date and moon phase.
Video: A detailed 21-second video showcasing the Frederique Constant FC705N4S6 Slim Line Automatic Watch from various angles, highlighting its design and features.
Key Features
- Movement: Frederique Constant manufacture automatic FC-705 movement.
- Case: Polished stainless steel case with a transparent, screw-down sapphire caseback.
- Dial: Elegant blue dial with silver-tone hands and indices.
- Functions: Date display sub-dial and moon phase indicator at the 6 o'clock position.
- Crystal: Scratch-resistant sapphire crystal.
- Strap: Comfortable blue leather strap with a pin buckle.
- Water Resistance: 3 ATM (30 meters / 99 feet), suitable for splashes but not swimming or diving.
Setup and Initial Operation
1. Winding the Watch
Your Frederique Constant FC705N4S6 is an automatic watch, meaning it is powered by the motion of your wrist. However, if the watch has stopped or has not been worn for an extended period, it may require manual winding to initiate operation.
- Ensure the crown is in Position 1 (fully pushed in against the case).
- Turn the crown clockwise approximately 20-30 times. This will build up a power reserve to start the movement.
- Once started, wearing the watch for at least 8 hours a day will keep it wound.
2. Setting the Time
- Gently pull the crown out to Position 2 (the outermost position). The seconds hand will stop.
- Rotate the crown to set the hour and minute hands. To avoid confusion between AM/PM for date change, advance the hands past 12 o'clock. If the date changes, you are in the AM hours.
- Once the correct time is set, push the crown back into Position 1 (fully in).
3. Setting the Date and Moon Phase
The FC705N4S6 features a date sub-dial and a moon phase indicator. These are typically adjusted via the crown in an intermediate position.
- Gently pull the crown out to Position 1.5 (an intermediate position between fully in and fully out). This position allows for quick adjustment of the date and moon phase.
- Rotate the crown clockwise or counter-clockwise to adjust the date and moon phase. Observe the indicators to set them correctly.
- Important: Avoid setting the date or moon phase between 9 PM and 3 AM, as this is when the watch's internal mechanisms are engaged in changing the date, and manual adjustment can damage the movement. If you need to set the date during these hours, first set the time outside this window (e.g., to 6 AM), adjust the date/moon phase, then reset the time to the current time.
- Once the date and moon phase are set, push the crown back into Position 1 (fully in) to ensure water resistance.
Operating Your Watch
Daily Wear
For consistent timekeeping, wear your automatic watch regularly. The natural motion of your arm will keep the mainspring wound. If the watch is not worn for more than 38 hours (approximate power reserve), it will stop and require manual winding or wearing to restart.

Image: The Frederique Constant FC705N4S6 Slim Line Automatic Watch displayed on a wrist, illustrating its elegant fit and appearance during wear.
Water Resistance
The FC705N4S6 watch has a water resistance rating of 3 ATM (30 meters / 99 feet). This means it is resistant to splashes, rain, and incidental contact with water. It is not suitable for showering, swimming, diving, or any water sports. Always ensure the crown is fully pushed in to maintain water resistance.
Care and Maintenance
- Cleaning: Wipe the watch case and sapphire crystal with a soft, dry cloth. For the leather strap, avoid excessive moisture and harsh chemicals.
- Avoid Shocks: Protect your watch from strong impacts or vibrations, which can affect the delicate mechanical movement.
- Temperature Extremes: Do not expose the watch to extreme temperatures (above 60°C / 140°F or below 0°C / 32°F) or sudden temperature changes.
- Magnetic Fields: Keep the watch away from strong magnetic fields (e.g., speakers, refrigerators, certain electronic devices) as these can affect timekeeping accuracy.
- Servicing: Mechanical watches benefit from regular servicing, typically every 3-5 years, to ensure optimal performance and lubrication of the movement. Contact an authorized Frederique Constant service center for professional maintenance.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch has stopped or is running slow. | Insufficient power reserve. | Manually wind the watch (20-30 turns of the crown) or wear it consistently for several hours. |
| Date or moon phase is incorrect. | Needs adjustment. | Refer to the "Setting the Date and Moon Phase" section. Ensure adjustment is not done between 9 PM and 3 AM. |
| Condensation appears under the crystal. | Moisture ingress. | Immediately take the watch to an authorized service center to prevent damage to the movement. |
| Watch is running too fast or too slow consistently. | Magnetization or need for regulation. | Consult an authorized service center for demagnetization or regulation. |
Specifications
| Model Number | FC705N4S6 |
| Movement | Frederique Constant Manufacture Automatic FC-705 |
| Case Material | Polished Stainless Steel |
| Case Diameter | 42 mm |
| Case Thickness | 12 mm |
| Crystal | Sapphire Crystal (front and caseback) |
| Dial Color | Blue |
| Strap Material | Blue Leather |
| Strap Width | 21 mm |
| Clasp Type | Pin Buckle |
| Water Resistance | 3 ATM (30 meters / 99 feet) |
| Functions | Hours, Minutes, Date, Moon Phase |
| Item Weight | 450 Grams (15.87 ounces) |

Image: A visual guide illustrating various watch case sizes, from 14-16mm up to 50-54mm, for comparison. The FC705N4S6 has a 42mm case diameter.
Warranty Information
Your Frederique Constant FC705N4S6 watch is covered by a manufacturer's warranty. The specific terms and duration of the warranty are provided by Frederique Constant. Please refer to the warranty card included with your purchase or visit the official Frederique Constant website for detailed information regarding warranty coverage, conditions, and how to make a claim. For purchases made through Amazon, additional warranty details may be available via your Amazon order history or Amazon's customer service.
Customer Support
For any questions, service requests, or technical assistance regarding your Frederique Constant watch, please contact:
- Frederique Constant Official Website: Visit frederiqueconstant.com for support resources, authorized service centers, and contact information.
- Authorized Retailer: Contact the retailer from whom you purchased the watch for assistance.





