
The Ultimate Guide to Swiss ETA Automatic Movements
Discover everything you need to know about Swiss ETA automatic movements and what sets them apart.
Winding your automatic watch properly helps protect the movement and ensures accurate performance. Unlike quartz watches, automatic movements rely on mechanical energy stored in a mainspring — so when they’ve stopped or are running low, a manual wind is the most direct way to get them going again. Always wind your watch off your wrist to avoid putting pressure on the crown stem, and turn the crown slowly and smoothly. Rapid or aggressive winding isn’t just unnecessary — it can wear down components over time.
For a deep dive, read our article on: How To Use an Automatic Watch.
Winding your automatic watch properly helps protect the movement and ensures accurate performance. Unlike quartz watches, automatic movements rely on mechanical energy stored in a mainspring — so when they’ve stopped or are running low, a manual wind is the most direct way to get them going again. Always wind your watch off your wrist to avoid putting pressure on the crown stem, and turn the crown slowly and smoothly. Rapid or aggressive winding isn’t just unnecessary — it can wear down components over time.
For a deep dive, read our article on: How To Use an Automatic Watch.
Short answer: No — but there’s a caveat. Modern automatic watches have a slipping clutch mechanism that prevents overwinding. Once fully wound, the mainspring disengages so it won’t be damaged. A few things to keep in mind:
Short answer: No — but there’s a caveat. Modern automatic watches have a slipping clutch mechanism that prevents overwinding. Once fully wound, the mainspring disengages so it won’t be damaged. A few things to keep in mind:
You don’t need to wind your automatic watch every day—unless it has stopped or is running low on power and you aren’t wearing it consistently. Automatic watches are designed to keep themselves powered through the natural movement of your wrist, so if you wear your watch daily, manual winding is usually unnecessary. However, daily winding can be beneficial in certain situations:
Otherwise, wearing your watch regularly will naturally keep it wound through your movements, making manual winding optional for most wearers.
You don’t need to wind your automatic watch every day—unless it has stopped or is running low on power and you aren’t wearing it consistently. Automatic watches are designed to keep themselves powered through the natural movement of your wrist, so if you wear your watch daily, manual winding is usually unnecessary. However, daily winding can be beneficial in certain situations:
Otherwise, wearing your watch regularly will naturally keep it wound through your movements, making manual winding optional for most wearers.
Automatic watches are powered by a mechanical rotor that spins with the motion of your wrist, transferring energy to a mainspring. This means they don’t require batteries or recharging. Instead, they rely on classic, self-sustaining engineering. If your automatic watch stops, all it needs is a wind to get it going again — no battery swap necessary.
Want to learn more? Discover our complete guide on: How Do Automatic Watches Work.
Automatic watches are powered by a mechanical rotor that spins with the motion of your wrist, transferring energy to a mainspring. This means they don’t require batteries or recharging. Instead, they rely on classic, self-sustaining engineering. If your automatic watch stops, all it needs is a wind to get it going again — no battery swap necessary.
Want to learn more? Discover our complete guide on: How Do Automatic Watches Work.
✘ Damage internal components
✘ Affect timekeeping
✘ Loosen screws or parts
✓ Manual winding with the crown
✓ Wearing it consistently for several hours
✓ Using a watch winder (if appropriate)
✘ Damage internal components
✘ Affect timekeeping
✘ Loosen screws or parts
✓ Manual winding with the crown
✓ Wearing it consistently for several hours
✓ Using a watch winder (if appropriate)
Not necessarily. If your automatic watch has enough power reserve (typically 38 to 42 hours, sometimes longer), it will keep running even if you don’t wear it for a day or two. If the watch has stopped because it was unworn for longer than the power reserve, then yes — you will need to set the time before wearing it again.
Most modern automatics have a power reserve that allows continuous operation for up to two days or more. For example, the bespoke ETA-2671 automatic movements in VIEREN Luxury Watches offers a 44-hour power reserve, letting it run accurately without winding or setting for nearly two days.
Not necessarily. If your automatic watch has enough power reserve (typically 38 to 42 hours, sometimes longer), it will keep running even if you don’t wear it for a day or two. If the watch has stopped because it was unworn for longer than the power reserve, then yes — you will need to set the time before wearing it again.
Most modern automatics have a power reserve that allows continuous operation for up to two days or more. For example, the bespoke ETA-2671 automatic movements in VIEREN Luxury Watches offers a 44-hour power reserve, letting it run accurately without winding or setting for nearly two days.