1. Introduction
This manual provides detailed instructions for the proper use, setup, and maintenance of your Timex Waterbury 39mm Analog Watch, Model TW2W20400UK. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.

Image 1: Front view of the Timex Waterbury 39mm Analog Watch.
2. Product Overview
Your Timex Waterbury watch features a durable brass case, a blue dial with a day and date window, and a comfortable brown leather strap. It is designed for everyday wear with a water resistance of up to 50 meters.
2.1 Watch Components
- Crown: Used for setting time and date.
- Hour, Minute, Second Hands: Indicate the current time.
- Day/Date Window: Displays the current day of the week and date.
- Mineral Glass Lens: Protects the dial.
- Leather Strap with Buckle Clasp: Secures the watch to your wrist.

Image 2: Side profile of the watch, highlighting the crown.
3. Setup and Initial Use
3.1 Setting the Time
- Pull the crown out to position 3 (farthest position). The second hand will stop.
- Turn the crown clockwise or counter-clockwise to set the hour and minute hands to the desired time. To ensure correct AM/PM setting, advance the time until the date changes. This indicates midnight.
- Push the crown back into position 1 (normal operating position) to start the watch.
3.2 Setting the Day and Date
- Pull the crown out to position 2 (middle position).
- Turn the crown clockwise to set the date.
- Turn the crown counter-clockwise to set the day.
- Once the day and date are set, push the crown back into position 1.
Note: Avoid setting the date between 9:00 PM and 3:00 AM, as this may interfere with the automatic date change mechanism.
3.3 Adjusting the Strap
The watch features a standard buckle clasp on a leather strap. To adjust, simply thread the strap through the buckle and secure it using the appropriate hole for a comfortable fit on your wrist.

Image 3: Rear view of the watch, showing the buckle clasp and case back.
4. Operating Your Watch
4.1 General Operation
Once the time and date are set, your watch will operate continuously. The quartz movement ensures accurate timekeeping. The second hand will sweep smoothly, and the day/date will advance automatically at midnight.
4.2 Water Resistance
This watch is water resistant up to 50 meters (164 feet). This means it is suitable for short periods of recreational swimming, but not for diving or snorkeling. Avoid operating the crown while the watch is wet or submerged to prevent water intrusion.
- 50 Meters (5 ATM): Suitable for showering, swimming in shallow water. Not suitable for diving or prolonged submersion.
Caution: Water resistance is not a permanent condition and may eventually deteriorate. Avoid exposing the watch to extreme temperature changes, as this can affect the seals.
5. Maintenance
5.1 Cleaning Your Watch
To maintain the appearance of your watch, wipe the case and strap with a soft, dry cloth. For the leather strap, avoid excessive moisture and harsh chemicals, which can damage the material.
5.2 Battery Replacement
Your watch is powered by one nonstandard battery (included). When the watch stops running or the second hand begins to jump erratically (indicating a low battery), it is time for a battery replacement. It is recommended to have the battery replaced by a qualified watch technician to ensure proper sealing and maintain water resistance.
5.3 Storage
When not in use, store your watch in a cool, dry place away from direct sunlight and extreme temperatures. Avoid storing it near magnetic fields, which can affect the accuracy of the quartz movement.
6. Troubleshooting
- Watch Not Running:
- Check if the crown is pushed in completely to position 1.
- The battery may be depleted. Refer to Section 5.2 for battery replacement.
- Date/Day Not Changing:
- Ensure the time is set correctly for AM/PM. The date changes around midnight.
- Avoid setting the date between 9:00 PM and 3:00 AM. If you did, reset the time and date outside this window.
- Water Inside the Watch:
- Immediately take the watch to a qualified service center. Do not attempt to open the watch yourself.
7. Specifications
| Model Number | TW2W20400UK |
| Movement | Quartz |
| Case Material | Brass |
| Case Diameter | 40 millimeters |
| Case Thickness | 9.5 millimeters |
| Band Material | Leather |
| Band Width | 20 millimeters |
| Dial Color | Blue |
| Dial Window Material | Mineral Glass |
| Display Type | Analog |
| Clasp Type | Buckle |
| Calendar | Day-Date |
| Water Resistance Depth | 50 Meters (5 ATM) |
| Battery | 1 Nonstandard Battery (included) |
| Item Weight | 8.04 ounces |
8. Warranty and Support
For detailed warranty information regarding your Timex Waterbury watch, please refer to the official Timex warranty policy. You can typically find this information on the manufacturer's website or through the provided warranty card included with your purchase.
For warranty inquiries or technical support, please visit the official Timex support page or contact their customer service directly.
Online Warranty Information: Click here for product warranty details
9. Product Video
Watch this video for a closer look at the Timex Waterbury watch features and design.
Video 1: Official product video showcasing the Timex Waterbury watch.





