Repair Blog

Rolex Datejust: Reference 1601 Caliber 1560

Symptoms: Regular maintenance

Repair contents: Overhaul, spring and gasket replacement, case and bracelet light polishing

Repair cost: 33,000 yen

I disassembled it. Since it was a watch that had not been used for a long time and had been left as it was, I was asked to do some maintenance before using it. If it has not been used for many years, it is better for the watch to be stored as it is, without forcing it to move. There is no need...

Rolex Submariner: Reference 16800 Caliber 3035

Symptoms: Immobility (spring broken)

Repair contents: Overhaul, spring and gasket replacement, case and bracelet cleaning, water resistance test (20 bar)

Repair cost: 27,500 yen

I took it apart. The 16800 bezelless model is quite expensive. I feel that Rolex sports models, not just the Submariner, are too expensive, but I guess it can't be helped because there is demand. The movement is 3035.

Replace the broken spring and reassemble. The replacement of the spring and gasket is included...

Derby & Schaldenbrand Cal.ETA.7751 base

Symptoms: Poor accuracy (delay) / Moon phase malfunction

Repair contents: Overhaul, spring and gasket replacement, case cleaning

Repair cost: 33,000 yen

I took it apart. It is a movement based on ETA 7751, and is a model with a chronograph, triple calendar, and moon phase. I think this is the most common movement for Tri-Cal Moon.

Assemble. The back of the scale is transparent, so there are decorations on the base plate and the receiving plate.

IWC Old Inter Cal.8531

Symptoms: Regular maintenance

Repair contents: Overhaul and case cleaning

Repair cost: 27,500 yen

I took it apart. It's a vintage IWC model, the Old Inter. It's said to be a great watch with a Pellaton-type automatic winding unit, but there are significant individual differences. This one is in good condition, with no particularly bad wear or tear.

Assemble. Calibers starting with 85, such as the 8531, come in a variety of models depending on the year. There are parts that...

Citizen Hand-wound

Symptoms: Immobility (spring broken)

Repair contents: Overhaul, mainspring repair, case cleaning

Repair cost: 16,500 yen

I took it apart and cleaned it. It's a Citizen hand-wound watch with 7 jewels, a common model at the time. The more jewels there are the better, but 7 jewels is a small number in terms of functional jewels, so you can tell it's a movement in the general retail price range.

Spring broken

The mainspring is broken and needs to be replaced, but...