Watch Model: Coach
Mass, band+case+movement: 61.3g
Dimensions, case: 42.28mm diameter x 10.81mm thick
Crystal diameter: 38 1/2
I disassembled and repaired my own Sony a7iii and wrote this disassembly guide on the iFixIt site:
https://www.ifixit.com/Guide/Sony+a7iii+Disassembly/166520
I want to promote my iFixIt guide, but I should be honest, I followed this video when I did mine. Click here.
Watch Model: Elgin National Watch Company (619485?)
Movement Serial Number: Elgin National Watch Company 8739946
Mass: 58.3g
Case Outer diameter: 42.0mm
Crystal diameter:
Thickness: 11.7mm
Movement Dimensions:
https://pocketwatchdatabase.com/search/result/elgin/8739946
Width: 1.85mm
Length: ~450mm (~18 inches)
Thickness: 0.18mm
Apparently it’s Elgin #824.
Watch Model: Patek Philippe
Year Made: ~1932
Movement Model: Patek Philippe #949478, 7-70
Case Number: Ref. 3006, #697379
Mass, case+movement: 9.7g
Mass, movement alone: __g
Dimensions, case: 18.46mm diameter x 7.10mm thick
Crystal diameter:
Dimensions, movement: 11.9mm wide x ~16mm high x __mm thick
Watch Model: Jules Racine & Co. 1018672
Movement Model: Excelsior Park No 3364R
Year Made: ____
Mass: 79.96g (without string attached)
Outer diameter: 50.3mm
Crystal diameter: 42.75mm, 0.89mm thick
Shock-Resistant:
Not worth repair.
At full-throw of the pallet fork, the pallet stone does not clear the ratchet wheel tooth:
After mainspring replacement, the watch ticked through two or three teeth of the ratchet wheel, then get stuck. Normally, I would look into adjusting the ratchet wheel or pallet fork, but since the case was bent and the crystal shattered, I believe the entire movement was slightly warped throughout. When resassembling, the bridge holes didn’t quite line up, further indicating the whole movement is bent.
Broken crystal face:
Replaced:
Customer brought in a plasma cutter that had popped when first powered on then did not power on after that.
I fixed the obviously-damaged arc drive lug, but the device still didn’t power on. It was not worth troubleshooting the rest of the device at the time as it is difficult to disassemble. No charge to the customer, but I probably should have checked the primary power section of the cutter first.
I didn’t take a picture of the final solder
The customer still has it. I may try troubleshooting again sometime …
Missing secondary crown:
Replaced:
A customer brought in a Christmas tree. She had dropped the power adapter and it had a funny connector so she couldn’t find a replacement.
I replaced the connector with USB and gave her an adapter. Better than buying a new one!
A customer brought in a hard drive hoping to recover the data. The data wasn’t worth paying a laboratory so she brought it to me for an attempt.
I was not able to recover the data, but I was able to diagnose the problem so for no charge she got the peace of mind of knowing the data was gone forever. The platter was badly scratched. I called the lab and they told me they couldn’t recover the data even for $100,000! Impossible?