Watch Second Hand Jumping Every 5 Seconds?
Good news - your watch isn't broken. This is a deliberate warning signal built into most quality quartz watches. Here's exactly what it means and what to do.
The short answer
Your watch battery is almost flat. The 5-second jump is called the EOL indicator - end of life. The watch is deliberately telling you it needs a new battery before it stops completely.
Your watch is still keeping accurate time. You typically have 1 to 4 weeks before it stops altogether. Replace the battery soon - a dead battery left inside the watch can leak and damage the movement.
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What is the EOL indicator?
Most quality quartz watches contain a tiny circuit that monitors the battery voltage. When it drops below a certain threshold, the circuit switches the second hand from its normal one-second tick into a multi-second jump mode.
This is entirely intentional. The watch is using less power in jumping mode, which extends the remaining life just long enough for you to notice the problem and get the battery changed. The timekeeping circuit remains accurate throughout - only the second hand display changes.
Different manufacturers use different jump intervals. All of them mean the same thing.
| Second hand behaviour | What it means | Action needed |
|---|---|---|
| Ticks once per second | Normal - battery fine | Nothing |
| Jumps every 2 seconds | EOL indicator - battery low | Replace battery soon |
| Jumps every 4 seconds | EOL indicator - battery low | Replace battery soon |
| Jumps every 5 seconds | EOL indicator - battery low | Replace battery soon |
| Stopped completely | Battery flat or watch fault | Replace battery first |
| Sweeps smoothly | Automatic watch - no battery | Wind the crown |
Which watches have the EOL indicator?
The EOL indicator is found in most quality quartz watches. Budget watches often don't have it - they just stop without warning. If your watch is giving you the jumping second hand, it's actually a sign of a better quality movement.
Watches known to use the EOL indicator include TAG Heuer, Seiko quartz, Tissot, Citizen quartz, Casio (most models), Fossil, Rotary, Accurist, Lorus, Pulsar, Longines quartz, Raymond Weil quartz, and many fashion watches from Michael Kors, Emporio Armani and Hugo Boss.
⚠️ Don't leave it too long
Once the EOL indicator starts, you typically have 1 to 4 weeks before the watch stops completely. At that point the battery is fully depleted and can start to leak inside the case.
Silver oxide battery leakage corrodes the movement contacts and can cause permanent damage - turning a simple £10-£20 battery change into a much more expensive repair. The EOL indicator exists precisely to avoid this. Act on it.
Find the right replacement battery
Open the caseback and read the code printed on the existing battery - it will be something like 377, SR626SW, 371, CR2016 or similar. The most common watch batteries are listed below.
Not sure which battery you need? Use the search on our homepage - type your watch brand or model for an instant answer.
A note from our watch expert
In nearly 40 years in the jewellery trade, the jumping second hand is one of the most common things customers bring watches in for - often convinced the watch is faulty. It never is. It's just the battery doing its job and telling you it's time.
One thing worth knowing: the EOL indicator only appears on quartz watches with a battery. If your watch has a sweeping second hand it's automatic and doesn't have a battery at all - a jumping second hand on an automatic is a different problem and worth getting looked at by a watchmaker.
For quartz watches, get the battery changed promptly. A good jeweller will do it in a few minutes for £10-£20. If the watch is water resistant, ask them to reseal it and pressure test it while they have it open - worth the extra peace of mind.