Service: Eterna Dress Watch with In-house 520U Movement
This week an Eterna dress watch that’s part of a batch from Poland. The movement is the Eterna 520U with 15 jewels and a hidden ratchet wheel and crown wheel. It’s Eterna’s [...]
All You Need to Know About German Watches
What do we usually associate Germany with? Cars? Beer? While these two are best not combined, I can’t blame you for the association. To some, the word “Germany” brings to mind the agile and [...]
Service: Eterna Dress Watch with In-house 905 Movement
This is an Eterna dress watch that found its way onto my workbench. The serial number is 2892981 which places this watch in 1941. The movement is the Eterna 905 movement. Bestfit tells me that [...]
How to Choose the Right Mainspring
During a service, there are two options for the mainspring. You can either reuse the old one (after you’ve cleaned and lubricated it) or you can replace it with a new one. So, a mainspring [...]
The Curious Case of Display Case Backs
When we look at modern mechanical wristwatches, we can easily notice that most of them are equipped with a transparent case back. It’s a common feature regardless of the price range and country [...]