Repair Blog
Coming soon TAG HEUER Carrera Chronograph overhaul

TAG Heuer: Carrera Chronograph: Ref. CV2113 Cal.17
Symptoms: Overhaul for store-bought products
Repair contents: Overhaul, spring and gasket replacement, case light polishing
Repair cost: 33,000 yen (reference price)

I'm sorry for the delay in updating the blog again. I will update it again soon.
This is a Heuer Carrera chronograph. It is a double-decker chronograph, and the photo shows the time mechanism. The base is an ETA2892, but it has been modified for double-decker use and has the caliber number 2894-2.

I...
Coming soon ROLEX Rolex Explorer I overhaul frozen dial

Rolex Explorer I: Reference 14270 Caliber 3000
Symptoms: Overhaul for store-bought products
Repair contents: Overhaul, spring and gasket replacement, case and bracelet cleaning, waterproof test
Repair cost: 27,500 yen (reference price)

The Explorer I, which we introduced previously, is already listed as a product, so please take a look if you're interested.
This is the same 14270, but it is a model called "single tritium side hole". Single means that the bracelet buckle is single, tritium means that the dial and hands are tritium, and side hole means...
Coming soon ROLEX Rolex Explorer I overhaul

Rolex Explorer I: Reference 14270 Caliber 3000
Symptoms: Overhaul for store-bought products
Repair contents: Overhaul, spring and gasket replacement, case and bracelet cleaning, waterproof test
Repair cost: 27,500 yen (reference price)

Disassembled
This is a pre-maintenance for the watch to be on display in the store. It is an Explorer I with caliber 3000. It is a simple 3-hand automatic watch without a calendar.

The time mechanism was assembled
The case and bracelet are in very good condition and the movement is...
BULOVA Valjoux23 overhaul (consignment/online shop listing)
Bulova: Cal.Val23 (Valjoux 23)
Symptoms: Poor accuracy
Repair contents: Overhaul, hairspring correction, case cleaning
Repair cost: 33,000 yen

This is an overhaul of a consignment item listed on our online shop. It is a Bulova chronograph that appears to be from the 1960s. The movement is a Valjoux 23, a hand-wound two-counter chronograph. The case is 18k gold and is compact in size.

This is the condition before the overhaul. Although it is not clear from the photo, the balance spring has become deformed and is touching...
OMEGA Speedmaster Professional overhaul
Omega Speedmaster Professional: Caliber 1861
Symptoms: Immobility (spring broken)
Repair contents: Overhaul, spring and gasket replacement, case and bracelet cleaning
Repair cost: 33,000 yen

This is an overhaul of an Omega Speedmaster Professional. It is a relatively compact chronograph with a long history of movement manufactured by Lemania. The caliber is 1861 and is rhodium plated, but the number and plating color change depending on the year.

The mainspring has broken. Whether it is a hand-wound or automatic watch, the mainspring will break when it breaks. There...