1. Introduction
Thank you for choosing the Gosasa Square Digital Watch Model 2016. This manual provides essential information for setting up, operating, and maintaining your watch. This digital watch features a large, easy-to-read display, EL backlight, and 50-meter water resistance, making it suitable for daily wear and various activities.

Figure 1: Gosasa Square Digital Watch (Model 2016)
2. Product Overview and Setup
Before using your watch, familiarize yourself with its components and basic setup.
2.1 Watch Components

Figure 2: Watch Components
- Watch Case: Protects the internal mechanisms. Made of ABS material.
- Watch Dial: The display area showing time, date, and other information.
- Watch Band: Made of soft and flexible TPU for comfortable wear.
- Watch Mirror: High-transparent resin glass for clear visibility.
- Watch Clasp: Buckle type for secure fastening.
- Back Cover: Stainless steel for durability and water resistance.
2.2 Button Functions

Figure 3: Watch Buttons and Functions
- LIGHT Button: Activates the EL backlight.
- MODE Button: Cycles through different modes (Time, Date, Alarm, Stopwatch).
- START/STOP Button: Used to start/stop functions like the stopwatch or adjust settings.
- RESET Button: Used to reset functions or confirm settings.
3. Operating Instructions
3.1 Setting Time and Date
- Press the MODE button repeatedly until the time display starts flashing.
- Use the START/STOP button to adjust the hour.
- Press the RESET button to move to the minute setting.
- Use the START/STOP button to adjust the minutes.
- Continue pressing RESET to cycle through year, month, and day settings, adjusting each with the START/STOP button.
- Once all settings are correct, press the MODE button to exit setting mode.
3.2 Using the EL Backlight
Press the LIGHT button to illuminate the display for easy reading in low-light conditions. The backlight will remain on for a few seconds.
3.3 Using the Alarm
- Press the MODE button until the alarm time is displayed.
- Press the START/STOP button to adjust the alarm hour.
- Press the RESET button to move to the alarm minute setting.
- Use the START/STOP button to adjust the alarm minutes.
- Press the MODE button to activate or deactivate the alarm. An alarm icon will appear on the display when activated.
3.4 Using the Stopwatch (Chronograph)
- Press the MODE button until the stopwatch display appears (usually showing 00:00:00).
- Press the START/STOP button to start the stopwatch.
- Press the START/STOP button again to pause the stopwatch.
- Press the RESET button to reset the stopwatch to zero.
3.5 Product Video Overview
Video: An overview of the Gosasa Square Digital Watch, demonstrating its features and design. This video highlights the large numbers and waterproof capabilities.
4. Maintenance
4.1 Water Resistance
The Gosasa Square Digital Watch is water-resistant up to 50 meters (5ATM). This means it is suitable for swimming in shallow water and cold showering. However, it is important to avoid wearing it in hot water, steam, or during long-time underwater activities such as diving, as this can compromise the water seal.

Figure 4: Water Resistance Feature
4.2 Cleaning and Care
- Clean the watch regularly with a soft, damp cloth.
- Avoid using chemical cleaners, as they may damage the watch's finish or seals.
- Store the watch in a dry place when not in use.
- Avoid exposing the watch to extreme temperatures or direct sunlight for prolonged periods.
4.3 Battery Replacement
The watch uses 1 Nonstandard Battery. When the display becomes dim or the watch stops functioning, the battery may need replacement. It is recommended to have the battery replaced by a qualified watch technician to ensure the water resistance seal is maintained.
5. Troubleshooting
- Display is blank or dim: Check the battery. If the battery is low, replace it.
- Time is incorrect: Follow the instructions in Section 3.1 to reset the time.
- Buttons are unresponsive: Ensure the watch is not in a locked mode (if applicable, though this model does not specify one). Try pressing the buttons firmly. If the issue persists, the battery might be very low or there could be an internal malfunction.
- Water inside the watch: If moisture appears inside the watch, stop using it immediately and seek professional repair to prevent further damage.
If you encounter issues not listed here or if troubleshooting steps do not resolve the problem, please contact customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Model Name | SKF2016 |
| Item Model Number | 2016 |
| Display Type | Digital |
| Watch Movement Type | Japanese Quartz |
| Water Resistance Depth | 50 Meters (5ATM) |
| Case Material | ABS |
| Band Material | TPU (Polyurethane) |
| Mirror Material | Glass / Resin |
| Clasp Type | Buckle |
| Case Diameter | 31 mm |
| Case Thickness | 10 mm |
| Band Width | 20 mm |
| Overall Watch Length | 245 mm |
| Item Weight | 0.05 Kilograms (1.76 ounces) |
| Power Source | Battery Powered (1 Nonstandard Battery required) |
| Additional Features | Alarm, Chronograph, Easy Reader, Shock Resistant, Timer, EL Light |
7. Warranty and Support
Gosasa offers a 12-month after-service for this product. If you have any questions or require assistance with your watch, please contact Gosasa customer support. For returns or exchanges, a 30-day no-reason return and exchange policy is available through the seller.
For further assistance, please refer to the seller's contact information on the purchase platform.