Why your Rolex stops to run?

 As many as 60% of customer coming to watch repair shop do not understand why his Rolex stops after wearing a few hours, It s was found that mainly they don't prime the watch, even on Rolex official site carry the important information to remind us to prime the watch. Especially some vintage Rolex.

You need to prime (manually wind) an automatic watch after it has completely stopped to give the mainspring enough initial energy to start the balance wheel and power the movement. 

Why Priming is Necessary

Jumpstarts the Balance Wheel: The internal weighted rotor relies on your arm's motion to keep the watch wound, but it cannot generate enough instant force from a dead stop to start the ticking mechanism. 
Ensures Full Power Reserve: Simply wearing a stopped watch or shaking it lightly only provides a minimal charge, meaning the watch may run slow or stop again soon after you take it off. 
Reduces Gear Strain: Giving the crown 20 to 30 manual turns properly tensions the mainspring, ensuring stable accuracy right from the start. 

If you'd like, let me know the brand or movement caliber of your watch, and I can tell you the exact number of manual winds recommended by the manufacturer.

HK Snob

What should we do when I find out the watch is not waterpoof? (Eng)

 f you suspect your Rolex is not waterproof or has already taken on moisture, the most crucial step is to act immediately to prevent long-term damage like rust or corroded components. 

Immediate Emergency Actions

1. Stop the watch: If it is a manual-wind, do not wind it. If automatic, do not shake it. Keep it upright with the crown facing down.
2. Pull the crown: Pull the crown out to the furthest position to allow air into the case.
3. Dry the exterior: Gently blot the watch with a clean, dry microfiber cloth.
4. Try desiccant packets: Place the watch in a sealed container or bag with silica gel packets to help absorb internal moisture.
5. Avoid heat: Do not use a hairdryer, oven, or direct intense sunlight to dry it, as this can warp seals and damage lubricants. 

Professional Action Needed

• Take it to a professional immediately: Send the watch to a Rolex Authorized Service Centre or a reputable, certified independent watchmaker immediately to have the case opened, dried, and cleaned.
• Request a pressure test: After drying, have the watchmaker replace the gaskets and seals (specifically the crown, caseback, and crystal seals) and perform a vacuum or pressure test to verify it is sealed correctly. 

How to Prevent Future Issues

• Check the crown: Ensure the screw-down crown is tightened down completely, as a loose crown is the most common cause of water intrusion.
• Regular service: Have the watch pressure-tested every 1–2 years, particularly if it is a vintage model or is used in water frequently.
• Rinse after saltwater: Always rinse your Rolex with fresh water after swimming in the ocean to remove salt deposits. 

If you see constant fogging under the crystal, it is a clear sign that water has entered the case. The sooner you act, the less likely you will need a costly, full movement overhaul due to rust.

Paul Ip