MASTOP 1345

MASTOP Digital Sports Watch Model 1345 Instruction Manual

Your guide to operating and maintaining your MASTOP Digital Sports Watch.

1. Introduction

Thank you for choosing the MASTOP Digital Sports Watch Model 1345. This manual provides detailed instructions for setting up, operating, and maintaining your watch to ensure optimal performance and longevity. Please read this manual thoroughly before using your watch.

MASTOP Digital Sports Watch, blue, displaying time and date

Figure 1: Front view of the MASTOP Digital Sports Watch Model 1345. This image shows the watch face with a digital display, indicating time, day, and date, along with function labels for the control buttons.

2. Product Features

  • Digital Time Display: Shows hours, minutes, and seconds.
  • 12/24 Hour Format: Selectable time display format.
  • Alarm Clock: Daily alarm function.
  • Stopwatch (Chrono): For measuring elapsed time.
  • EL Backlight: Electroluminescent backlight for visibility in low light conditions.
  • Date and Week Display: Shows the current date and day of the week.
  • Water Resistance: 3 ATM (30 meters) water resistance. Suitable for daily use, splashes, and rain. Not suitable for showering, bathing, swimming, or diving.
  • Durable Construction: Stainless steel bracelet and case with hardened mineral glass.
MASTOP Digital Sports Watch with EL backlight activated

Figure 2: The watch display illuminated by the EL backlight, showing enhanced visibility in dark environments.

3. Setup

3.1 Initial Time Setting

Your watch may require initial time and date setting. Refer to the "Operating Instructions" section for detailed steps on how to adjust the time and date.

3.2 Adjusting the Bracelet

The stainless steel bracelet can be adjusted to fit your wrist. This typically involves removing links. It is recommended to have this procedure performed by a professional jeweler to avoid damage to the watch or bracelet.

Watch bracelet adjustment mechanism

Figure 3: Illustration of a watch bracelet with a hook buckle clasp, indicating the mechanism for adjustment. Professional assistance is advised for link removal.

4. Operating Instructions

The watch features four buttons: MODE, START, LIGHT, and RESET (often combined with START or MODE depending on context). The exact button functions may vary slightly based on the current mode.

4.1 Button Functions Overview

  • MODE Button: Cycles through different modes (Time, Alarm, Stopwatch).
  • START Button: Used to start/stop functions in Stopwatch mode, or adjust values in setting mode.
  • LIGHT Button: Activates the EL backlight.
  • RESET Button: Used to reset values in Stopwatch mode, or confirm settings. (Often the same as START button in setting mode, or a separate button).

4.2 Time and Date Setting

  1. From the normal time display, press the MODE button three times to enter time setting mode. The seconds will flash.
  2. Press the START button to reset the seconds to zero.
  3. Press the RESET button (or MODE button, depending on model) to move to the hour setting. The hours will flash.
  4. Press the START button to adjust the hour.
  5. Repeat the process for minutes, month, date, and day of the week.
  6. Press the MODE button once to exit setting mode and return to normal time display.

Note: The 12/24 hour format can usually be toggled during the hour setting by pressing the START button past 12 or 24.

4.3 Alarm Setting

  1. From the normal time display, press the MODE button twice to enter alarm setting mode. The hour digits will flash.
  2. Press the START button to adjust the alarm hour.
  3. Press the RESET button (or MODE button) to move to the minute setting. The minute digits will flash.
  4. Press the START button to adjust the alarm minute.
  5. Press the MODE button once to exit alarm setting mode.

To turn the alarm ON/OFF: In normal time display, press and hold the START button and press the RESET button (or MODE button) simultaneously. An alarm icon will appear/disappear to indicate status.

4.4 Stopwatch (Chrono) Function

  1. From the normal time display, press the MODE button once to enter stopwatch mode. The display will show "00:00:00".
  2. Press the START button to begin timing.
  3. Press the START button again to pause timing.
  4. Press the RESET button to reset the stopwatch to "00:00:00".
  5. Press the MODE button to return to normal time display.

4.5 EL Backlight

Press the LIGHT button to illuminate the display for a few seconds. This feature is useful in low-light conditions.

Angled view of MASTOP Digital Sports Watch with EL backlight active

Figure 4: An angled view of the watch, demonstrating the EL backlight feature which provides clear visibility of the digital display in dim lighting.

5. Maintenance

  • Cleaning: Wipe the watch regularly with a soft, dry cloth to remove dust and dirt. For the stainless steel bracelet, a slightly damp cloth can be used, followed by immediate drying.
  • Water Resistance: The watch is 3 ATM water resistant. This means it can withstand splashes, rain, and brief immersion in water. Do not press buttons underwater. Do not expose the watch to hot water or steam (e.g., hot showers, saunas) as this can compromise the water seals.
  • Temperature: Avoid exposing the watch to extreme temperatures, both hot and cold, as this can affect battery life and movement accuracy.
  • Chemicals: Keep the watch away from chemicals, solvents, detergents, perfumes, and cosmetics, as these can damage the case, strap, or internal components.
  • Impact: Avoid strong impacts or dropping the watch, which can cause damage to the glass or internal mechanism.
  • Storage: When not in use, store the watch in a dry, cool place, away from direct sunlight.

6. Troubleshooting

Problem Possible Cause Solution
Display is blank or dim. Low battery. Replace the battery. It is recommended to have this done by a professional watch repair service.
Time is incorrect. Time needs to be set. Refer to Section 4.2 "Time and Date Setting".
Alarm does not sound. Alarm is not activated or set incorrectly. Refer to Section 4.3 "Alarm Setting" to ensure the alarm is set and turned ON.
Water condensation inside the watch. Exposure to hot water/steam or compromised water seals. Stop using the watch immediately and seek professional repair. Avoid further exposure to water.

7. Specifications

  • Model: 1345
  • Movement: Japanese Quartz Digital
  • Case Material: Zinc Alloy
  • Band Material: Stainless Steel
  • Clasp Type: Hook Buckle
  • Mirror Material: Hardened Mineral Glass
  • Water Resistance: 3 ATM (30 meters)
  • Functions: Time, Chrono (Stopwatch), Alarm, Date, Week, EL Light, 12/24 hour clock
  • Package Dimensions: Approximately 3 x 3 x 3 inches
  • Weight: Approximately 1.6 ounces (45 grams)
Watch specifications and dimensions diagram

Figure 5: Detailed product parameters including model number, weight, movement type, case and band materials, and a list of functions. Dimensions are also indicated.

8. Warranty and Support

MASTOP products are designed for quality and durability. While specific warranty details are not provided in this manual, please retain your proof of purchase for any potential warranty claims.

For further assistance or inquiries, please contact the retailer where you purchased the watch or refer to the MASTOP official website for customer support information.

Note: Any watch cannot resist hot water. Avoid wearing the watch in hot baths or showers. Each wristwatch is double-checked for quality before shipment.

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