Invention of the Ball Bearing Rotor In 1948, Eterna announced a friction-reducing ball-bearing mounted rotor system as part of the...
Guides
In the watch community, COSC and chronometer are often used interchangeably, sometimes incorrectly. It’s like whiskey and bourbon: all bourbon...
Glashutte Original is one of the few brands that publishes a price list for service. At the time of this...
According to Grand Seiko: The caliber number is a four-digit number that indicates the model of a movement (mechanical part...
According to Orient: Check the caliber number by referring to the model number of your watch or the case code...
James recently asked Caliber Corner: I have an ETA movement I removed from a Royce military style however all I...
The second hand on my Miyota powered watch isn’t smooth… why? Is your automatic timepiece ticking like a quartz watch?...
In Omega’s own words: “The introduction of the OMEGA Co-Axial escapement in 1999 signalled a revolution in modern mechanical watchmaking....
Paraflex is the name of Rolex’s proprietary anti-shock system for their automatic watch movements. In technical terms, it is a...
Some watch collectors think one surefire way to spot a fake Rolex movement is to wind the crown clockwise to...
Diashock is the name of Seiko Watch Corporations’s proprietary anti-shock system (or shock absorber) for mechanical/automatic watch movements. It was...
The Magic Lever was introduced by Seiko in 1959 with the purpose of improving the efficiency of the winding system....
Although many Seiko watch owners do not service their watches, and some even think of Seikos as being bulletproof, the...
Did you know there are 4 Grades of Sellita Movements? Just like some ETA movements, Sellita calibers are also available...
If you’ve been in the Caliber Corner Community for some time, you’ve seen the word lignes here and there. What...
Workhorse movement is a label given to certain watch movements by enthusiasts and collectors in many watch communities. The term...
There is a lot of confusion in the watch community about Seiko and Seiko-related watches and movements. Most of the...