Ingles
30 M does not mean you should submerge your watch 30 meters deep.
If your watch shows 3 ATM / 30 M, that figure expresses a water-pressure resistance rating. To know what you can actually do with it, consider the type of water contact, the crown, the pushers, and the condition of the gaskets.
It is a rating related to the pressure the watch is designed to withstand under specific test conditions.
The figure should not automatically be treated as a practical depth for swimming or diving.
Splashes and rain, yes. Water activities and deliberate immersion, no.
What do 3 ATM and 30 M mean?
ATM means atmosphere and is a unit used to express pressure.
In watchmaking it is also common to use bar or an equivalent expressed in meters. Approximately, the rating 3 ATM / 3 bar / 30 M refers to the same pressure rating level.
What matters is not confusing that equivalence with a usage instruction. 30 M does not mean the watch is intended for water activities at 30 meters depth.
MUNIN watches marked as 3 ATM / 30 M carry the corresponding certification for this rating. Based on it, MUNIN follows a conservative usage recommendation to help preserve the watch as long as possible.
How is water resistance tested?
Water resistance is not tested by simply taking a watch into the sea to a given depth. Technical standards use controlled tests to check whether water or moisture enters the case.
Controlled variables
Pressure, temperature, time, and test conditions are defined.
More factors come into play
Direct jets, soap, hot water, movement, impacts, crown, pushers, and aging gaskets.
That is why a technical rating should come with a specific usage recommendation.
So, what can I do with a MUNIN 3 ATM / 30 M?
This is the practical recommendation to follow day to day.
Everyday contact
Accidental splashes. If the watch gets a few drops, dry it afterward with a soft cloth.
Rain. Normal, occasional contact with rain falls within expected everyday use.
Careful hand washing. You can wear it for small splashes, avoiding placing the watch directly under the tap.
Water activities
Shower. Hot water, steam, soap, and longer exposure are involved.
Pool, swimming, and sea. MUNIN does not recommend using a 3 ATM / 30 M watch for these activities.
Immersion, snorkel, or diving. This rating level is not intended for those uses.
Crown and pushers: if it is wet, do not touch them
The crown and pushers are moving parts of the case and are part of the system that helps maintain water resistance.
Water resistance is not permanent
The watch uses gaskets and sealing elements to limit moisture entry. Over the years, those components can lose elasticity or deteriorate.
These can also be affected: impacts, wear, or work on the case. That is why a 3 ATM / 30 M rating should not be seen as an unchanging property for the watch’s entire life.
What should I do if the watch gets wet?
A wet exterior does not necessarily mean water has entered the inside.
Dry it gently
Use a clean, soft, dry cloth. Do not touch the crown or pushers until the watch is completely dry.
Request a service check
If persistent fog, droplets, or any sign of water inside appears, stop normal use and request a service check.
3 ATM / 30 M is meant for everyday life, not water activities.
Splashes and rain are part of everyday use. To better preserve your MUNIN, avoid shower, pool, swimming, sea, and deliberate immersion, and do not operate the crown or pushers while the watch is wet.
Frequently asked questions
Do 3 ATM and 30 M mean the same thing?
They are related ways of expressing roughly the same pressure rating level used in watchmaking. It does not mean you should physically go 30 meters underwater with the watch.
Can I wash my hands with a 3 ATM watch?
Yes for normal small splashes. MUNIN recommends avoiding deliberately placing the watch under the tap stream.
Can I shower with a 3 ATM / 30 M watch?
MUNIN does not recommend it. A shower adds prolonged exposure, hot water, steam, soap, and temperature changes.
Can I swim with a 30 M watch?
We do not recommend it for MUNIN 3 ATM / 30 M watches. For swimming, prefer a watch specifically rated by its manufacturer for water activities.
Can I use the chronograph if the watch is wet?
No. Wait until the watch is completely dry before operating the crown or pushers.
Does water resistance decrease over the years?
It can. Gaskets and other sealing components age and can also be affected by impacts, wear, or work done on the case.
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