A quartz watch stopping is usually not a fault but a routine maintenance need. Even so, the subject of watch batteries is one of the areas where owners meet the most misinformation: how long does a battery last, is the watch damaged when it runs out, and where should it be changed?
This guide covers the whole subject, from the factors that affect battery life and the types of battery to the replacement process and how water resistance is preserved.
Short answer
A standard quartz watch battery lasts 2–4 years on average. Extra functions such as a date, a chronograph and a light shorten that period; on plain three-hand models the life is longer.
Do not leave the watch sitting once the battery has run out: a leaking battery can cause permanent damage to the movement. The replacement should always be done at an authorised service centre so that the gasket can be checked.
How long does a watch battery last?
| Type of watch | Average battery life | Why |
|---|---|---|
| Plain three-hand quartz | 3 – 5 years | Only the stepper motor runs |
| Quartz with a date window | 2 – 4 years | An additional mechanical load |
| Multi-function / chronograph | 1.5 – 3 years | More than one motor and display |
| With a light / alarm function | 1 – 2 years | High instantaneous consumption |
| Light-powered (solar) | 10+ years (cell replacement) | It uses a rechargeable cell |
Six factors that affect battery life
- The number of functions. The most decisive factor. Every additional display is a separate consumer of energy.
- Battery quality. Branded silver oxide batteries provide both a longer life and a more stable voltage than cheap alkaline alternatives. A drop in voltage causes the watch to run slow.
- Temperature. Extreme cold temporarily reduces a battery's capacity; sustained heat shortens its life permanently.
- The age of the watch. Friction inside the movement increases over the years and the motor draws more energy. The second battery in the same watch can last less than the first.
- Time spent unworn. The circuit runs and the battery drains even when the watch is not worn. "The battery won't run down because it's in a drawer" is not true.
- Magnetic fields and humidity. Both strain the movement and increase consumption.
How do you know the battery has run out?
- The watch has stopped completely. The clearest sign.
- The EOL warning. Some quartz watches have an End of Life indicator: instead of moving every second, the second hand moves once every 2 or 4 seconds, jumping that many steps at a time. It means the battery will run out within a few weeks, and the watch still shows the correct time.
- The watch has started running slow. As the voltage drops, the motor no longer receives enough power.
- The date changes late. A date that flips in the early morning rather than at midnight is a sign of low voltage.
- It stops and starts intermittently. Usually the battery's final days.
Is the watch damaged when the battery runs out?
Yes, it can be. This is the most critical and least known part of the subject.
A dead battery can leak over time. The escaping electrolyte causes corrosion on the copper and steel parts of the movement. That damage is often irreparable and calls for a complete movement replacement — a cost far above that of a battery change.
A practical rule: Change the battery within a few weeks of the watch stopping. If you will not be wearing the watch for a long time, remove the battery and store the watch that way.
Types of watch battery
- Silver oxide (SR series): The standard in wristwatches. It provides a stable 1.55 V, which keeps the watch running at the same rate throughout the battery's life. Product codes are typically SR621SW, SR626SW, SR927SW.
- Alkaline (LR series): Cheaper, but the voltage drops over time, which causes the watch to run slow. Not recommended for wristwatches.
- Lithium (CR series): 3 V; more often used in digital watches and models needing a long life.
- Rechargeable cell: Used in light-powered (solar) watches; it delivers 10 years of use or more.
Important: The battery code is determined by the watch model and cannot be substituted. Using the wrong code both shortens the running time and can damage the movement.
Battery replacement: why at an authorised service centre?
Changing a battery looks like a simple operation, but it directly affects two critical properties of the watch.
1. Water resistance
When the case back is opened, the gasket (O-ring) must always be checked. Gaskets harden over time and lose their elasticity. On a watch closed without renewing it, the 5 ATM rating on the label is no longer valid — the watch can let water in at the first hand wash.
2. Closing the case back correctly
Screw-down case backs have to be tightened to a specific torque. Closing them by hand or with an unsuitable tool both breaks the seal and leaves permanent scratches on the case back.
In addition, with most brands, work carried out by a non-authorised service centre voids the warranty. Warranty and service terms.
A checklist for what should be done during a battery change
- Using the correct battery code
- Checking the gasket and renewing it if necessary
- Closing the case back to the correct torque
- A water resistance test (where possible)
- Setting the watch to the correct time and checking that it runs
What determines the price of a watch battery?
The price of a watch battery service consists of three items: the battery itself, labour and, where applicable, a gasket replacement. The cost of the battery is usually a small part of the total; the real difference comes from labour and the gasket service. Very cheap battery-change offers generally do not include a gasket check — which means a saving in the short term and a risk in the long term.
Care habits that extend your watch's life
- Keep the crown fully closed. A crown left half open after setting the time is the most common way water reaches the movement.
- Do not apply perfume or hairspray while wearing the watch.
- Take care in hot environments. Saunas, steam baths and hot showers can make the gaskets expand and let steam in.
- If you see condensation under the crystal, take the watch to a service centre immediately; it is a definite sign that the seal has failed.
- Clean the strap regularly. A guide to strap care.
- If you will not wear it for a long time, remove the battery and keep the watch in its box, away from direct sunlight.
For how the movement works and the difference between quartz and automatic: What is a quartz watch?
If ease of maintenance is your priority
Models with a quartz movement, 5 ATM water resistance and hardened mineral glass need no routine intervention beyond a battery change.
Everyday wear
Quartz models that need no maintenance
A quartz movement, 5 ATM water resistance and hardened mineral glass are standard across the whole collection. The technical specifications appear in detail on every product page.
Explore the collection →Frequently Asked Questions
How long does a watch battery last?
In a plain three-hand quartz watch a battery lasts 3–5 years on average, in models with a date window 2–4 years, and in multi-function and chronograph models 1.5–3 years. In watches with a light and alarm function that falls to 1–2 years. The battery drains even when the watch is not worn, because the circuit keeps running.
Is a watch damaged when the battery runs out?
Yes, it can be. A dead battery can leak over time, and the escaping electrolyte causes corrosion on the metal parts of the movement. That damage is often irreparable and calls for a complete movement replacement. The battery should be changed within a few weeks of the watch stopping.
How do you know a watch battery is about to run out?
Some quartz watches have an EOL (End of Life) warning: instead of moving every second, the second hand moves once every 2 or 4 seconds, jumping that many steps at a time. Other signs are the watch beginning to run slow, the date flipping late rather than at midnight, and the watch stopping and starting intermittently.
Where should a watch battery be changed?
At an authorised service centre. When the case back is opened, the gasket must be checked and renewed if necessary; if that is not done, the watch's water resistance is no longer valid. Screw-down case backs also have to be closed to the correct torque, and with most brands non-authorised work voids the warranty.
Which type of watch battery should be used?
Silver oxide (SR series) batteries are the standard in wristwatches; because they provide a stable 1.55 V, the watch runs at the same rate throughout the battery's life. Alkaline (LR series) batteries are cheap but their voltage drops over time, which makes the watch run slow. The battery code is determined by the watch model and cannot be substituted.
Is water resistance preserved when the battery is changed?
Only if the gasket is checked and renewed where necessary. Gaskets harden over time and lose their elasticity; on a watch closed without renewing it, the 5 ATM rating on the label is no longer valid. Condensation under the crystal is a definite sign that the seal has failed, and the watch should be taken to a service centre immediately.
Does the battery run down in a watch I don't wear?
Yes. The circuit inside keeps running even when the watch is not worn, and the battery drains. If you will not be wearing the watch for a long time, removing the battery and keeping the watch in its box away from direct sunlight both preserves battery life and eliminates the risk of leakage.
About this content
Written by: The Dice Kayek Timepieces Editorial Team · Editorial review: Dice Kayek product and customer experience team
The technical information in this guide (case sizes, movements, water resistance, crystal and strap types) is based on the technical specifications of Dice Kayek Timepieces collections and on standards widely accepted in the watchmaking industry. Price and stock information reflects values at the date of publication; please check the product pages for current details.
Related guides: Watch sizing guide · Watch care guide · Warranty and service
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