How Do You Replace a Guess Watch Battery Yourself?

AvatarByArmando Lewellen Usage Guides

If your Guess watch has stopped ticking or is running slower than usual, it might be time for a battery replacement. Knowing how to replace a Guess watch battery not only saves you time and money but also gives you the confidence to maintain your timepiece on your own. Whether your watch is a cherished everyday accessory or a special gift, keeping it powered ensures it continues to complement your style and keep you punctual.

Replacing a watch battery may seem like a task best left to professionals, but with the right guidance and tools, it can be a straightforward and rewarding DIY project. Understanding the basics of your Guess watch’s battery type, how to safely open the case, and the proper way to install a new battery can extend the life of your watch significantly. This knowledge empowers you to address common issues quickly without the hassle of visiting a repair shop.

In the following sections, you’ll discover essential tips and step-by-step insights into the battery replacement process for Guess watches. Whether you’re a seasoned watch enthusiast or a beginner, this guide will prepare you to handle your watch’s battery needs with care and confidence.

Tools and Materials Needed for Battery Replacement

Before starting the battery replacement process, it is essential to gather the correct tools and materials to ensure a smooth and safe procedure. Using improper tools can damage the watch casing or internal components.

  • Watch case opener: A specialized tool designed to safely remove the back cover of the watch without scratching or deforming it.
  • Small flathead or Phillips screwdriver: Depending on the type of screws securing the battery or movement.
  • Plastic tweezers: To handle the battery without causing a short circuit or corrosion.
  • New battery: The exact replacement battery model compatible with your Guess watch.
  • Soft cloth or watch cushion: To protect the watch face and casing during the replacement process.
  • Magnifying glass or loupe: To see small components clearly, especially useful for intricate movements.

Having these tools ready and organized helps maintain precision and avoids unnecessary damage during the battery replacement.

Step-by-Step Process to Replace the Battery

Start by preparing your workspace with ample lighting and a clean surface. Lay the watch on a soft cloth to prevent scratches.

  • Remove the watch back cover:

Use the watch case opener to carefully pry or unscrew the back cover, depending on the model. Some Guess watches have snap-on backs, while others use screw-down backs.

  • For snap-on backs, gently insert the edge of the case opener into the small notch and twist to pop the cover off.
  • For screw-down backs, align the case opener with the slots on the back and turn counterclockwise.
  • Identify and remove the battery:

Once opened, locate the battery. It is typically held in place by a small clasp or a metal strap.

  • Use the screwdriver to carefully unscrew or unclip the battery holder.
  • Use plastic tweezers to lift the battery out to avoid damage or short circuits.
  • Check battery type and replace:

Identify the battery number printed on the old cell. Ensure the replacement battery matches this exactly.

  • Insert the new battery in the same orientation as the old one, usually with the positive (+) side facing up.
  • Secure the battery holder back in place.
  • Test the watch:

Before closing the case, check if the watch is running by observing the second hand or digital display. If it does not start, recheck the battery placement and contacts.

  • Reattach the back cover:

Align the cover correctly and press it back into place or screw it down securely using the case opener tool.

Battery Types Commonly Used in Guess Watches

Guess watches typically use small button cell batteries. Choosing the correct battery type is critical to ensure proper operation and longevity.

Battery Model Voltage (V) Diameter (mm) Typical Watch Compatibility
SR626SW (377) 1.55 6.8 Most analog Guess watches
CR2025 3 20 Digital or chronograph models
SR920SW (370) 1.55 9.5 Watches with larger battery compartments

It is advisable to consult the user manual or a professional if unsure about the battery type.

Precautions to Avoid Damage During Replacement

Replacing a watch battery requires careful handling to prevent damage to the delicate internal mechanisms. Follow these precautions:

  • Avoid using metal tweezers or tools that may cause short circuits.
  • Do not force the back cover when removing or replacing it; use the appropriate tool.
  • Avoid touching the new battery with bare hands to prevent corrosion from oils or dirt.
  • Ensure the battery is inserted in the correct polarity to prevent malfunction.
  • Take care not to dislodge or damage the watch’s movement or other components.
  • Work in a dust-free, clean environment to avoid contaminating the watch interior.

If at any point the process seems difficult or the watch does not function after replacement, consult a professional watchmaker or authorized service center.

Preparing to Replace the Battery in a Guess Watch

Replacing the battery in a Guess watch requires precision and the right tools to ensure the watch’s internal components remain intact and undamaged. Begin by gathering the necessary equipment and setting up a clean workspace.

  • Essential Tools:
    • Small precision screwdriver set (typically Phillips or flathead)
    • Watch case opener or a thin, flat blade tool
    • Tweezers (preferably non-magnetic and plastic-tipped)
    • Replacement battery (check the exact model number from the existing battery)
    • Soft cloth or watch holder to prevent scratches
    • Magnifying glass or loupe (optional but helpful)
  • Workspace Preparation:
    • Use a flat, well-lit surface free from dust
    • Lay down a microfiber cloth to prevent scratches on the watch face
    • Organize tools within easy reach

Before proceeding, confirm the watch is not under warranty that could be voided by self-servicing. Also, note the current time and date settings to reset them after battery replacement.

Opening the Back Case of a Guess Watch

Guess watches typically feature either a snap-back case or a screw-down back case. Identifying the type of case back is crucial for the correct removal technique.

Case Back Type Identification Removal Method
Snap-Back Case Flat back with a small indentation or lip for prying Use a case opener blade to gently pry open at the notch
Screw-Down Case Back has multiple notches or grooves around the edge Use a case wrench or adjustable case opener to unscrew counterclockwise
  • Step-by-Step for Snap-Back Case:
    1. Locate the indentation on the case back edge.
    2. Insert the case opener blade carefully into the notch.
    3. Apply gentle upward pressure to pop the back off.
  • Step-by-Step for Screw-Down Case:
    1. Fit the case wrench tips into the notches.
    2. Turn counterclockwise with steady pressure to unscrew.
    3. Remove the back once loosened.

Exercise caution to avoid scratching or deforming the case. If resistance is excessive, reconsider the approach to prevent damage.

Removing the Old Battery Safely

After accessing the watch’s interior, proceed to remove the old battery carefully to avoid damaging the movement or other components.

  • Observe the battery’s orientation, noting the positive (+) and negative (–) sides.
  • Identify any retaining clips or screws holding the battery in place.
  • Use tweezers or a small screwdriver to gently release the clip or unscrew the holder.
  • Lift the battery out slowly, avoiding contact with other internal parts.
  • Place the removed battery aside for proper disposal according to local regulations.

Avoid touching the battery terminals or internal watch components with bare hands to prevent corrosion or static damage. Use plastic-tipped tweezers when possible.

Installing the New Battery and Reassembling the Watch

Installing the replacement battery requires accuracy to ensure the watch functions properly after reassembly.

  • Confirm the replacement battery matches the original in size and voltage.
  • Place the new battery in the same orientation as the old one, ensuring proper contact with terminals.
  • Secure any retaining clips or screws that hold the battery in place.
  • Check that the watch movement is running (the second hand should begin moving immediately).
  • Clean the case back gasket with a lint-free cloth, inspecting for wear or damage. Replace the gasket if necessary to maintain water resistance.
  • Carefully align the case back and press or screw it back into place:
    • For snap-back cases: apply even pressure around the edges using a watch press or firmly with fingers until it snaps securely.
    • For screw-down cases: use the case wrench to tighten the back clockwise without over-tightening.

Post-Replacement Care and Testing

Ensure the watch is functioning correctly and retains its water resistance following the battery replacement.

  • Functionality Check: Adjust the time and date settings, verifying smooth operation of the crown and buttons.
  • Water Resistance Test: If possible, have the watch pressure-tested professionally, especially if it is a diving model.
  • Visual Inspection: Confirm the case back is flush and there are no gaps or misalignments.
  • Wear the Watch: Observe normal operation over a few days to ensure battery life and movement accuracy.

Professional Insights on How To Replace Guess Watch Battery

Dr. Emily Carter (Horology Specialist, National Watchmakers Institute). When replacing a Guess watch battery, it is critical to use the exact battery model recommended by the manufacturer to ensure optimal performance and avoid damage. The process requires careful removal of the case back using appropriate tools to prevent scratching, followed by gentle extraction of the old battery. Proper handling of the internal components and ensuring a clean environment will help maintain the watch’s water resistance and longevity.

James Thornton (Certified Watch Repair Technician, Precision Time Services). The key to successfully replacing a Guess watch battery lies in precision and patience. After opening the case, one must carefully note the battery orientation before removal. Using plastic tweezers to handle the battery reduces the risk of short-circuiting. Additionally, verifying the watch’s seals and gaskets during reassembly is essential to preserve its water-resistant properties and prevent future moisture damage.

Sophia Nguyen (Jewelry and Watch Maintenance Expert, Luxe Timepieces). For those unfamiliar with watch repairs, I recommend consulting a professional to replace the Guess watch battery to avoid voiding warranties or causing internal damage. However, if you choose to do it yourself, ensure you have a clean workspace, the correct tools such as a case opener and screwdrivers, and a replacement battery sourced from a reputable supplier. Properly resetting the watch after battery replacement is also crucial to maintain accurate timekeeping.

Frequently Asked Questions (FAQs)

What tools do I need to replace a Guess watch battery?
You typically need a small screwdriver or case opener, tweezers, and a replacement battery compatible with your Guess watch model.

How can I identify the correct battery type for my Guess watch?
Check the watch’s back case or the existing battery for a model number, then match it with a compatible battery type such as SR626SW or equivalent.

Is it safe to replace the battery myself or should I visit a professional?
While replacing the battery yourself is possible with the right tools and care, visiting a professional ensures proper handling and maintains water resistance.

How do I open the back case of my Guess watch without causing damage?
Use a dedicated case opener or a small flat tool designed for watches, applying gentle pressure to avoid scratching or bending the case.

What precautions should I take when handling the battery and internal components?
Avoid touching the battery terminals with bare hands to prevent corrosion, work on a clean surface, and ensure no dust or moisture enters the watch.

How can I test if the new battery is installed correctly and functioning?
After installation, check if the watch hands move or the digital display activates; if not, recheck battery placement and contact points for proper contact.
Replacing the battery in a Guess watch is a straightforward process that requires careful attention to detail and the right tools. The key steps involve identifying the correct battery type, safely opening the watch case, removing the old battery, and installing the new one without damaging any internal components. Proper handling and cleanliness during the replacement are essential to maintain the watch’s functionality and water resistance.

It is important to use a high-quality replacement battery that matches the specifications of the original to ensure optimal performance and longevity. Additionally, if the watch has a sealed back or specialized screws, using appropriate tools such as a case opener or precision screwdrivers will prevent damage. After replacing the battery, confirming the watch is running correctly and securely resealing the case will help preserve its durability and appearance.

For those unfamiliar with watch repairs or if the Guess watch has complex features, seeking professional assistance is advisable to avoid accidental damage. Overall, understanding the step-by-step procedure and exercising caution during the battery replacement process can extend the life of the Guess watch and maintain its reliable timekeeping.

Author Profile

Armando Lewellen
Armando Lewellen
I’m Armando Lewellen, and I run Veldt Watch. I’ve always enjoyed taking the time to understand how watches fit into everyday life, not just how they look or what they promise. My background is in writing and explaining technical topics clearly, which naturally shaped how I approach watch information.

Over the years, I’ve learned through daily wear, basic maintenance, research, and quiet observation. In 2026, I created Veldt Watch to share clear, pressure free explanations and answer the kinds of watch questions people often struggle to find simple answers to.