1. Product Overview
This manual provides instructions for the GUESS Men's Stainless Steel Chronograph Watch, Model U0668G3. This timepiece features a chronograph stopwatch, date function, and is constructed with durable materials.

Figure 1: Front view of the GUESS Men's Stainless Steel Chronograph Watch U0668G3.
Key Features:
- Black chronograph dial with silver-tone Roman numerals and date window.
- Chronograph stopwatch function.
- 44.5 mm case size with durable mineral crystal.
- Brushed/polished stainless steel case and bracelet.
- Fold-over clasp with double push-button closure.
- Water resistant to 50 meters (165 feet).
2. Setup
2.1 Setting the Time and Date
- Pull out the crown: Gently pull the crown (the knob on the side of the watch) to position 2 for date adjustment, or position 3 for time adjustment.
- Adjust the date: If in position 2, turn the crown clockwise or counter-clockwise to set the correct date.
- Adjust the time: If in position 3, turn the crown to move the hour and minute hands to the correct time. Ensure AM/PM is correctly set if the watch has a 24-hour indicator.
- Push in the crown: Once the time and date are set, push the crown back into its original position (position 1) to start the watch and ensure water resistance.
2.2 Adjusting the Bracelet
The stainless steel bracelet features a fold-over clasp with a double push-button closure. For initial fitting, it may be necessary to have links removed or added by a professional jeweler to ensure a comfortable and secure fit.

Figure 2: Detail of the watch bracelet's fold-over clasp.
3. Operating Instructions
3.1 Basic Timekeeping
The watch operates on a Quartz movement, providing accurate timekeeping. The hour, minute, and second hands continuously display the current time once the crown is pushed back into position 1.
3.2 Chronograph (Stopwatch) Function
The watch is equipped with a chronograph function for measuring elapsed time. The pushers on the side of the case control this feature.
- Start: Press the top pusher to start the chronograph. The chronograph hands will begin to move.
- Stop/Pause: Press the top pusher again to stop or pause the chronograph. The elapsed time will be displayed.
- Reset: After stopping the chronograph, press the bottom pusher to reset all chronograph hands to their zero positions.

Figure 3: Close-up of the watch dial, highlighting the chronograph sub-dials and Roman numerals.
3.3 Date Display
The date window is located on the dial. The date automatically advances every 24 hours. If manual adjustment is needed (e.g., for months with fewer than 31 days), refer to section 2.1.
4. Maintenance
4.1 Water Resistance
This watch is water resistant to 50 meters (165 feet), suitable for short periods of recreational swimming. It is not suitable for diving or snorkeling. Avoid operating the crown or pushers when the watch is wet or submerged, as this can compromise the water resistance. Exposure to hot water, steam, or harsh chemicals (like detergents or perfumes) should be avoided as they can damage the seals.
4.2 Cleaning
To maintain the appearance of your watch, wipe the case and bracelet with a soft, damp cloth. For stainless steel, a mild soap solution can be used, followed by thorough rinsing and drying. Avoid abrasive cleaners or brushes that could scratch the finish.
4.3 Battery Replacement
The watch is powered by a battery. When the watch stops running or the second hand begins to skip, it indicates a low battery. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and function.
4.4 Mineral Crystal Care
The watch features a durable mineral crystal designed to resist scratches. However, it is not scratch-proof. Avoid contact with sharp objects or abrasive surfaces to prevent damage.
5. Troubleshooting
- Watch not running: Check if the crown is fully pushed in. If it is, the battery may need replacement.
- Incorrect time/date: Refer to section 2.1 for instructions on how to set the time and date.
- Chronograph not resetting to zero: This may require a specific reset procedure or professional adjustment. Consult a watch technician.
- Condensation under the crystal: This indicates a breach in water resistance. Immediately seek professional service to prevent further damage to the movement.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | U0668G3 |
| Case Material | Stainless Steel |
| Band Material | Stainless Steel |
| Case Diameter | 44.5 Millimeters |
| Case Thickness | 12 Millimeters |
| Band Width | 21.5 Millimeters |
| Crystal Type | Mineral |
| Movement Type | Quartz |
| Power Source | Battery Powered |
| Water Resistance Depth | 50 Meters (165 Feet) |
| Clasp Type | Fold-over-clasp-with-double-push-button-safety |
| Dial Color | Black |
| Band Color | Silver |
7. Warranty & Support
This product is covered by a manufacturer's warranty. For specific warranty terms, conditions, and duration, please refer to the warranty card included with your purchase or contact GUESS customer support directly. For technical assistance or service inquiries, please visit the official GUESS website or contact their authorized service centers.
8. Product Videos
8.1 Product Overview
Video 1: A brief overview of the GUESS Stainless Steel Chronograph Bracelet Watch, highlighting its features and design.
8.2 Watch Sizing Guide
Video 2: A guide to understanding watch case sizes and how they appear on different wrist sizes, provided by Sequel International (GUESS manufacturer).
