I purchased this Sully chronograph from eBay in a non-running condition. I chatted with the seller and he had attempted to get it running again, but admitted he got a little over his skis on it. I gladly accepted the challenge, though the watch arrive complete but in pieces. The movement inside is a Landeron 51, which was a common cam operated chronograph produced beginning in the 1930's.

The following repairs were needed in addition to a full cleaning:
- Mainspring barrel hole needed to be closed
- Made a new click spring from a guitar string to replace the broken original
- Hairspring needed manipulation to make it concentric
- Chrono eccentric screws required adjustment for smooth operation

I am an amateur who enjoys restoring vintage watches to working order. Constructive critiques of the process are welcome. I am always learning.

Contact info: [email protected]

Many of my tools I use are affordable. If you're interested in getting started with watch repair and would like to use what I use, I've included some links below. I earn a small commission from Amazon if purchases are made using these links.

Useful Texts:
Watch Repairer's Manual: https://amzn.to/3knrwdG
Watchmaker's Lathe: https://amzn.to/3D02WGb

Tools:
Movement Holder (pocket watches): https://amzn.to/3H9JBUv
Movement Holder (wrist watches): https://amzn.to/3JeG2iv
Ceramic Tipped Tweezers: https://amzn.to/3QP1qMH
Finger cots: https://amzn.to/3CXbXzJ
Micrometer: https://amzn.to/3QNGN3C and Stand: https://amzn.to/3iIyF86
Rodico: https://amzn.to/3kr5RBb
Tweezers: https://amzn.to/3GNFEVi
10X Loupe: https://amzn.to/3iLfome
Levers: https://amzn.to/3XB4RZG
Demagnetizer: https://amzn.to/3ZINUhS
Screwdrivers: https://amzn.to/3Xr7gqo

Cleaning:
Mesh Baskets: https://amzn.to/3ITqikE
Ultrasonic: https://amzn.to/3wcO7wg
Mason Jars: https://amzn.to/3WkUfgB
Cleaning Solution: https://amzn.to/3XwQ16I
Rinsing Solution: https://amzn.to/3wdgAlA
Cleaning Brushes: https://amzn.to/3QPnSp8

Lubrication:
Oilers: https://amzn.to/3Xi8LXR
DX Grease: https://amzn.to/3ZO0kVU
Moebius 941: https://amzn.to/3Hf6g2X
Moebius 9010: https://amzn.to/3CVGM7Y
Moebius D5: https://amzn.to/3ITqikE

Buffing and Polishing:
PolyWatch: https://amzn.to/3XlVTja
Polishing Compound: https://amzn.to/3QQ1r33
Chapters:
0:00 Intro and Unboxing
1:05 Start Disassembly
7:48 Mainspring Barrel Repair
9:03 Start Movement Reassembly
11:28 Click Spring Repair
14:37 Hairspring Repair
16:00 Balance Installation
16:33 Start Chronograph Reassembly
19:26 Chronograph Adjustment
21:14 Casing the movement
22:56 Crystal and Band

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Drone in D by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/...

Source: http://incompetech.com/music/royalty-...

Artist: http://incompetech.com/