We would like to introduce a repair case for overhauling and repairing the hairspring of Hamilton Khaki Field Titanium (Ref.H706650 / Cal.ETAC07611). Our first-class watch technicians carefully repaired problems such as oil loss, deformation of the hairspring, and deterioration of the packing.
[Hamilton Repair Case] Khaki Field Titanium Ref.H706650 Overhaul/Balance Spring Repair
Basic information about the watch
| brand | HAMILTON / Hamilton |
|---|---|
| model | khaki field titanium |
| movement | automatic winding |
| Model number (Ref) | H706650 |
| Cal.No. | ETAC07611 |
| Consultation details | Request for overhaul |
Symptoms before repair
The machine was in need of an overhaul because it was found to have run out of oil inside.
Additionally, the shape of the hairspring seemed to be distorted, which affected its accuracy.
Repair details/cost/delivery date
| overhaul | 23,000 yen |
|---|---|
| hairspring repair | 6,600 yen |
| Packing replacement | 1,100 yen |
| total repair cost | 30,700 yen (tax included) |
| Repair period | about 4 weeks |
*Prices are as of March 2026.
Engineer's comment
This time, because the internal lubricating oil had deteriorated, we carried out an overhaul that included disassembly, cleaning, lubrication, and precision adjustment.
We noticed that the shape of the hairspring was distorted, so we fixed it to make it as beautiful as possible.
The balance spring can become deformed due to shock or vibration, making it an important part that greatly affects the accuracy of a watch.
We also replaced the gasket as it was found to have deteriorated over time.
Repair/work photos
Condition before repair
Condition of dial and hands
Movement before repair
Movement after repair
Packing condition
Condition after repair completion
The charm of Nanapure watches
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You can find out the details of the repair by returning the replacement parts!
We will return the replaced parts to you, so you can check the details of the repair. -
Comes with a watch chart for peace of mind!
We will also send you photos of the inside of the watch and comments from our technicians. -
Apply easily online! Available nationwide!
We also offer free packing kits. -
A 1st class watch technician will respond!
Our experienced technicians will carefully perform repairs. -
Easy inquiry on LINE!
Please feel free to contact us for consultation before repair.
⌚️ Hamilton Overhaul FAQ
Q. How often is it recommended to overhaul Hamilton?
Generally, we recommend overhauling every 3-5 years. Regular maintenance can prevent accuracy loss and parts wear.
Q. What kind of repair is hairspring repair?
The hairspring is a very delicate part that adjusts the accuracy of the watch. Accuracy is improved by correcting deformation and distortion.
Q. Can I make a request from all over the country?
Yes, we are available nationwide. We also offer free packaging kits, so please feel free to contact us.
We are now accepting consultations before repairs on LINE!
https://page.line.me/766rudoq?openQrModal=true
