Using and caring for your watch

After servicing or repair

Thank you for your trust.
After servicing or repair, your timepiece is back in optimal condition.
This guide helps you operate and care for your watch correctly, so you can wear it reliably and enjoy it — today and in the future.

Mechanical movement in a holder during servicing
My own work: a mechanical movement during servicing.

What type of watch do you have?

There are three main types of movement:

Manual-wind movement during servicing

Manual wind (mechanical)

– wound by hand every day

Automatic movement visible through the case back

Automatic

– winds itself through wrist movement

Quartz movement with battery

Quartz

– powered by a battery

Each type calls for its own way of using it.

Winding and setting

Manual-wind watches

Daily winding

  • Wind the watch once a day.

  • Turn the crown clockwise in its normal position

  • Stop as soon as you feel clear resistance — turning further can cause damage

Setting the time

  • Pull the crown out to the time-setting position

  • Never set the date between 21:00 and 03:00
    During this period, the date mechanism is under tension

Automatic watches

Daily wear

  • Normal wrist movement keeps the watch wound

  • If you do not wear the watch every day, wind it by hand first
    (approximately 20–30 turns of the crown)

Setting the time & date

  • Follow the same guidelines as for manual-wind watches

  • The same rule applies: do not set the date between 21:00 and 03:00

Quartz watches

How they work

  • Quartz watches run on a battery and do not need winding

  • Batteries last an average of 1.5 to 3 years, depending greatly on the watch and battery type

Setting

  • Carefully pull the crown out to the correct position

  • Quartz watches also require care around the date change
    (21:00 – 03:00)

Crown and functions

Operating the crown correctly

General guideline

We recommend taking the watch off your wrist before winding or setting it.
This avoids unnecessary sideways strain on the winding stem and winding mechanism, helping to extend the movement’s life.

Crown positions

1. Pushed in: watch running / winding

2. First click: date setting (if present)

3. Second click: time setting

Screw-down crowns

  • First, gently unscrew the crown

  • After use, always screw it back down securely, without applying force

Using the chronograph

Operation

  • Top button: start / stop

  • Bottom button: reset (only when the chronograph has fully stopped)

Using the tachymeter (if present)

A tachymeter measures speed per hour, based on the time needed to cover a fixed distance.

How to use the tachymeter

1. Start the chronograph at the beginning of the distance

2. Stop after exactly 1 kilometre or 1 mile

3. The seconds hand indicates the speed (km/h or mph)

Other distances
You can measure over 100 metres or half a mile, but this requires recalculation.
The scale is directly correct only for 1 km or 1 mile.

Everyday care

Water resistance – an important misunderstanding

No watch is completely waterproof.
That is why the watch industry uses the term water resistance.

This means a watch can withstand water pressure up to a certain limit —
but all watches will eventually let moisture in if conditions are extreme enough.

Heat and temperature differences

Take extra care in warm weather:

Swimming, showering or entering a sauna with a warm watch is not recommended.

Large temperature differences cause:

  • metal, glass and plastic to expand and contract

  • gaskets to temporarily lose their sealing effectiveness

This can allow water to enter, even in watches that are normally water resistant.

Important

  • Condensation under the crystal is often a late sign

  • Damage may already have occurred

Advice

  • Avoid contact with water when there are large temperature differences

  • Always check that the crown is properly closed

  • Have water resistance checked regularly if you use the watch intensively

Magnetism and your watch

A magnetised watch:

  • usually runs fast, because the hairspring coils stick together

  • can also run irregularly or too slowly

Magnetism is easy to resolve and rarely causes permanent damage when treated promptly.

General tips for use
  • Avoid knocks, drops and shocks

  • Keep mechanical watches away from strong magnets

  • Store your watch in a dry place with a stable temperature

Watch on a Proofmaster during a pressure test, showing Test passed on the screen
My own work: a pressure test on the Proofmaster, with the measurement result visible.

Finally

Your watch is a precision instrument, but also a personal object with emotional value.
With the right care and attention, it can accompany you for a lifetime.

Do you have any questions or doubts?
We are happy to help — with care for your watch and for you.

info@othryswatches.nl