This time,BREITLING Aviastar(Ref.A13024) received a request for overhaul.
Basic information
| Brand/Model | BREITLING / Avia Star |
|---|---|
| movement | Automatic winding (ETA 7750) |
| Model number (Ref) | A13024 |
| caliber | ETA7750 |
| Consultation details | Request for overhaul |
Symptoms before repair
- Poor lubrication due to lack of oil inside the machine
・Spring slipping sound
・Wear of the winding mechanism
Repairs performed, costs, and delivery dates
| overhaul | 38,500 yen (tax included) |
|---|---|
| Spring replacement | 6,600 yen (tax included) |
| switching car exchange | 6,600 yen (tax included) |
| total repair cost | 51,700 yen (tax included) |
| Repair period | about 4 weeks |
Engineer's comment
It was confirmed that the machine was running out of oil, so we carried out an overhaul that included disassembly, cleaning, lubrication, and precision adjustment.
There was a slipping sound in the mainspring, which could affect the duration of operation, so we replaced it.
In addition, wear was confirmed on the switching vehicle, so it was replaced. When the switching wheel wore out, the mainspring would not wind up even if the rotor was rotating, so early replacement was necessary.
After maintenance, the machine will operate stably and can be used with peace of mind.
work photos
Exterior condition before disassembly
Dial up
Movement (before repair)
Movement (after repair)
Spring replacement
switching car exchange
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- 🔧 Repair details can be determined by returning replacement parts.(*Some items cannot be returned)
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🔹 Consultation before repair on LINE (photos and videos OK)

