Introduction
This manual provides essential instructions for the proper setup, operation, maintenance, and troubleshooting of your Festina F16504/4 men's watch. Please read this manual thoroughly before using your watch to ensure optimal performance and longevity.
Setup
Unboxing and Initial Inspection
Carefully remove the watch and its accessories from the packaging. Inspect the watch for any visible damage. The package should contain the Festina F16504/4 watch and an international certificate of guarantee.

Image: The Festina watch box, open to reveal the watch cushion and the international certificate of guarantee manual.

Image: The Festina F16504/4 watch resting on its cushion inside the presentation box.
Setting the Time
- Pull the crown out to the second click position. The second hand will stop.
- Turn the crown to set the hour and minute hands. Ensure the AM/PM is correctly set if your watch has a 24-hour indicator or date changes at midnight.
- Push the crown back into the normal position. The second hand will resume movement.
Setting the Date
Your Festina F16504/4 watch features a date display.
- Pull the crown out to the first click position.
- Turn the crown clockwise or counter-clockwise (depending on the movement) to set the date. Avoid setting the date between 9:00 PM and 3:00 AM, as this may interfere with the automatic date change mechanism.
- Once the correct date is displayed, push the crown back into the normal position.
Strap Adjustment
The stainless steel strap of your Festina watch may require adjustment for a comfortable fit. It is recommended to have this adjustment performed by a professional watchmaker or jeweler to prevent damage to the strap or clasp mechanism.
Operating the Watch
Your Festina F16504/4 is an analog quartz watch, designed for reliable timekeeping.

Image: The Festina F16504/4 watch with its silver stainless steel strap worn on a wrist, displaying the black dial and date window.
Water Resistance
This watch is water-resistant up to 50 meters (5 ATM). This means it is suitable for short periods of recreational swimming, but not for diving or snorkeling. Avoid operating the crown or pushers when the watch is wet to prevent water ingress.
- 50 meters (5 ATM): Suitable for everyday use and can withstand splashes, rain, and short periods of recreational swimming.
- Not suitable for: Hot showers, saunas, diving, or prolonged water activities.
Maintenance
Cleaning Your Watch
To maintain the appearance of your watch, wipe the case and strap regularly with a soft, dry cloth. For stainless steel parts, a slightly damp cloth can be used, followed by a dry cloth. Avoid using chemical cleaners, as they may damage the watch's finish or seals.
Battery Replacement
The watch is powered by a quartz movement and requires a battery. When the battery runs low, the second hand may start to skip seconds or stop entirely. Battery replacement should be performed by a qualified watch technician to ensure the water resistance seal is properly maintained.
Storage
When not wearing your watch, store it in a cool, dry place away from direct sunlight, extreme temperatures, and strong magnetic fields. The original watch box is ideal for storage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch has stopped or is running intermittently. | Low or depleted battery. | Have the battery replaced by a professional watch technician. |
| Date does not change at midnight. | Time is set incorrectly (e.g., AM/PM confusion). | Reset the time, ensuring the watch passes 12 AM for the date change. |
| Condensation under the crystal. | Exposure to extreme temperature changes or water ingress. | Immediately take the watch to a professional for inspection and repair to prevent internal damage. |
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please contact Festina customer support or an authorized service center.
Specifications
| Model Number | F16504/4 |
| Movement | Japanese Quartz |
| Display Type | Analog |
| Case Material | Stainless Steel |
| Case Diameter | 43 Millimeters |
| Case Thickness | 8 Millimeters |
| Band Material | Stainless Steel |
| Band Width | 31 Millimeters |
| Dial Color | Black |
| Band Color | Silver |
| Dial Window Material Type | Mineral |
| Water Resistance Depth | 50 Meters (5 ATM) |
| Clasp Type | Push Button Clasp |
| Special Features | Calendar |
| Item Weight | 110 Grams |
| Power Source | Battery Powered |
Warranty
Your Festina F16504/4 watch comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage resulting from improper handling, accidents, unauthorized repairs, or normal wear and tear. Please refer to the International Certificate of Guarantee included with your watch for full terms and conditions.
Support
For further assistance, service, or warranty claims, please contact your authorized Festina dealer or visit the official Festina website for customer support information. When contacting support, please have your watch model number (F16504/4) and proof of purchase readily available.