Classic watches, watchmaking, antique tools, history, vintage ephemera and more!
Learn about mechanical timepieces and how they work, the history of the American watch industry and especially all about the Elgin National Watch Company! Check back for new content daily.
Although this is technically a blog, the content is not generally in a time-based sequence. You can find interesting items throughout. Down the page some is an alphabetical word cloud of keywords used here. A great way to dig in is to look through those topics and click anything you find interesting. You'll see all the relevant content.
Here are a few of my favorites!
There are some large images on some posts, so that might impact your load times, bit I think you will find it worth the wait. Thanks for visiting!
How a Balance Staff is Replaced
The steel of the staff is hardened, so a carbide graver is used. The key is that the graver must be sharp - really sharp. The cutting edges are generally re-dressed for every use, but this will have to be another subject another day.
The left over part of the hub is like a tiny washer. Note that the hub that is cut away is the lower side. The upper side, opposite, of the wheel's arms is where the rivet is. Cutting the hub side is the only completely safe way to do this without risk to the balance wheel.
Riveting is a two step process, first using a round face hollow stake, and then a flat face for the finish.
This roller is a one piece double roller. Single rollers are just a disc (roller table) without the extra guard, visible in this photo situated above the roller table.
Some double rollers are two pieces. These are trickier to install since the upper part must be perfectly aligned with the jewel pin.
The rotation of the hairspring is important. The stud location needs to cause the roller jewel to free dead natural, in the middle of the pallet fork. When this is off center, the balance will turn more one way than the other. This is wasteful of power, and causes irregular rates and can even stop the watch.
- ► 2017 (135)
- ► 2016 (465)
- Elgin Grade 62, H. Z. Culver
- Database Updated
- Repairing a Loose Pallet Stone
- Is Your Pocketwatch Hard to Wind?
- Seating the Roller Table
- Watch Parts
- A New Type of Animation
- Elgin's Last Dial?
- How a Balance Staff is Replaced
- An 18 Size Elgin, Before and After
- Vintage Machinery, and Pocketwatches
- Elgin Grade 83, Sweep Seconds
- Sweep Wheel Remover
- Unexpected Watchmaker's Marks
- The Train
- An Elgin Grade 293, with Extra Bushings
- Hamilton Watch Company Wins Nation's Highest Award...
- Information Please!
- Employes Honor Swartchild Family
- Watchmakers Legislation As It Looks
- Making A Balance Staff
- ▼ January (22)
- ► 2014 (291)
- ► 2013 (281)
- ► 2012 (406)
- ► 2011 (135)
- ► 2010 (75)
- ► 2009 (96)
- ► 2008 (25)