I’ve been messing with pocket watches for about 6 years now and managed to fix a few. Some defeat me and there’s a simple reason; old age. The watch that is, not me.
You see pocket watches built back in the 1880-1920 period are genuine antiques and frankly, many of them were not built to last over a century. Owners skimp on servicing, the cases are hacked open with kitchen knives and cruder tools and dust, skin and hair sneaks in too. That often results in metal touching metal and the inevitable grinding paste effect that anyone who has stripped a BSA Bantam engine will be familiar with.
I digress. Here are some tips for those who have a vintage Waltham, Elgin, Thomas Russell, Omega or Lancashire Pocket Watch, and wish to keep it going.
- Don’t adjust the timekeeping using the A/R lever. It’s tempting to press a screwdriver in and waggle it this way or that to try and compensate for poor running. But the problem is unlilely to be that simple and there is a danger of pulling the hairspring. Bang goes the timekeeping completely and most likely, the watch will stop after a few seconds of running.
- Don’t oil or lubricate it, unless you have practised on other watches and use the correct tools and watch oil. Don’t drip lighter fluid in there either. It might help a sticky balance assembly, but it’s no substitute for a proper service.
- Try not to wind the watch fully. You’re putting a 100% load on something that might not have been replaced since WW2, which was the last time the mainspring was replaced. It’s possible that it’s still using the original mainspring. So wind it ten turns, maybe eight – be kind to the old girl. When you feel a fair bit of resistance, then stop winding.
- Don’t set the correct time by winding the hands backwards. It is just more load on ageing parts. Always advance the hands to set the time.
- Does it have a winding key? Then there’s a fusee chain inside, wich if you imagine a mini bicycle chain, wrapped around a walnut whip, gives you a good idea of how it works. It is very delicate and most likely has stretched over 50-100 years. There are no factories in China making fusee chains for British or American pocket watches from the 1890s, so take care when winding it.
- Top winders are more durable, as this is late Victorian tech, so made with more precision as machine tool manufacturing advanced. Any excess clicking, resistance or `crunching’ is a bad sign. Don’t wind it, don’t try to fix it with WD40.
- If your old Waltham runs for 15-18 hours it’s doing well. Don’t expect it to run for a full day, or kep the right time. Many lost 1-2mins a day when they were new, so losing 5 mins a century later is acceptable. Be kind when you wind!
If you have a pocket watch problem then email me at; email@example.com and maybe I can help. Or it may need the A Team. Estimates and sympathy are free!