Watches are precision instruments and require regular maintenance.
In particular, if the watch is not overhauled (disassembled and cleaned) at an appropriate frequency, the accuracy of the watch will decrease, and in the worst case, it may stop working.
Many people may wonder, "Is an overhaul really necessary?"
In this article,The need for watch overhaul, appropriate frequency, cost, and how to choose a service providerI will explain in detail.
Please read until the end so that you can use your precious watch for a long time.
What is overhaul? Basic knowledge that even beginners can understand
Purpose and necessity of overhaul
What is overhaul?Maintenance involves disassembling the watch and cleaning, inspecting, and repairing the internal parts.It means.
The inside of a watch uses fine gears and springs, which wear out and deteriorate with oil over time.
By overhauling your watch, you can extend its lifespan and ensure that it always keeps accurate time.
In particular,Mechanical watches every 3 to 4 years, quartz watches every 5 to 7 yearsAn overhaul is recommended.
Differences in maintenance between mechanical watches and quartz watches
On the watch,mechanical watchandquartz clockThere are two types. Each has different maintenance points.
✅ mechanical watch
- Because it moves by the power of a mainspring, regular lubrication and gear adjustment are required.
- Overhaul every 3 to 4 years is recommended
✅ quartz clock
- Since it runs on batteries, it is best to check it when the battery is replaced.
- If you overhaul it every 5 to 7 years, it will last a long time.
both watchesRisk of failure if maintenance is neglectedwill increase.
Causes of inaccurate accuracy and role of overhaul
When oil deteriorates, parts no longer move smoothly, affecting the accuracy of your watch.
- mechanical watch → Going too far or falling behind
- quartz clock → Battery consumption increases
During an overhaul, the old oil is removed and new oil is injected, allowing the watch to regain its original accuracy.

Maintenance points for long-term use
To make your watch last longer, keep the following points in mind.
✅ Perform regular overhauls
✅ Avoid magnetism and moisture
✅ do not give a shock
By being aware of these points, you can significantly extend the lifespan of your watch.
If you want to overhaul your watch, we recommend “Nanapure”! 7 reasons to choose us
Numerous awards received from Rakuten and Yahoo! Shopping! Track record of trust
“Nanapure” is available on Rakuten Market and Yahoo! Shopping.A trusted shop that has won numerous awardsIt is.
✅ Rakuten Market Best Shop Award History
✅ Yahoo! Shopping Annual Award for Best Shop
✅ Many highly rated reviews! Many repeat customers

If you want to leave your precious watch with peace of mind, our store's track record is proof of your trust!
You can see the repair details at a glance by returning replacement parts.
At Nanapure,Return replaced partsThis allows you to check the repair details. (Some parts cannot be returned)
You can eliminate the anxiety of "I don't know what was repaired..."!
Photograph the inside of the watch and receive a watch chart with comments from the technician
After the repair, we will give you a "watch chart" with a photo of the inside of your watch and the technician's comments!
It is popular because you can feel that it has been well maintained.

Apply easily online! Available nationwide and can be used anywhere
If you're thinking, "Do I have to take it to a shop to have my watch repaired?", don't worry!
If it's Nanapure,Easy online application & nationwide support! You can request an overhaul smoothly even if you are busy.
Easy shipping with free packaging kit
In Nanapure, there is aDedicated packing kitDelivered for free!
We can ship your watch safely, so you don't have to worry even if it's your first time shipping.
A 1st class watch technician will be in charge of repairs! Peace of mind with high technical capabilities
experienced1st class watch technicianis in charge of repairs! You can entrust your watch with peace of mind, as we will be handled by professionals with national qualifications.

Overhaul available at a cheaper price than regular stores
If it's Nanapure,Reasonable price than regular storesCan be overhauled!
Recommended for those who want to keep costs down but also want to do proper maintenance.
| quartz | mechanical | |
| 3 needles | From 20,000 yen | Starting from 30,800 yen |
| chronograph | From 38,500 yen | From 38,500 yen |
Easy inquiry on LINE! Solve your questions immediately
``I have something I would like to ask you before applying...'' ``I would like to know the estimated cost and delivery date.'' In such cases,Feel free to contact us on LINE!
You can quickly ask questions from your smartphone, which is easier and more convenient than calling or emailing. You can easily resolve your concerns and questions about maintenance!

Click here to request maintenance for your watch.
If you are thinking of overhauling or repairing your watch, please leave it to ``Wristwatch Nanapure''!
✅ Received numerous awards on Rakuten Market and Yahoo! Shopping!
✅ High-quality maintenance provided by a first-class watch technician!
✅ Available nationwide & easy to apply online!
Please take this opportunity to consider overhauling your precious watch so that you can use it for a long time.
If you have any questions, please feel free toLINEPlease contact us at ``!



