What is a “Forrest Gump” Watch Movement? What Caliber Corner has coined a “Forrest Gump” movement or “Forest Gump” caliber...
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This is an anti-magnetic dust cover or shield that can be found on some solid back Omega Speedmaster and Seamaster...
Invention of the Ball Bearing Rotor In 1948, Eterna announced a friction-reducing ball-bearing mounted rotor system as part of the...
Ball SpringLOCK is a patented shock protection device that acts as a cage around the hairspring, protecting it from jolts...
Chronograph pushers are typically spring loaded with a coil between the button and the case. But what keeps it in...
What is the difference between a chronometer and a chronograph? While they both share the same root word chrono, a...
In the watch community, COSC and chronometer are often used interchangeably, sometimes incorrectly. It’s like whiskey and bourbon: all bourbon...
The Cyma Triplex was a trifecta of protection for Cyma movements. Despite lots of folks thinking it was simply referring...
One of the common issues with the inexpensive Ronda quartz movements is that the coil is exposed without a cover,...
There is good design and there is bad design. And there is design that is both – or is it...
What is the difference between ETA caliber 2824-2 and 2804-2? Both of these calibers are mechanical movements, but the main...
Removing the crown and stem on the ETA G10 and ETA G15 series of quartz chronograph movements is fairly straightforward,...
How Many Grades of ETA Movements Are There? ETA offers four grades of watch movements: Standard Elabore (Elaborated) Top Chronometer...
PreciDrive and PowerDrive are confusing! It’s hard enough to buy ETA movements, and now the quartz movements that are available...
ETACHRON is the name of a type of watch regulator system. Despite being used by many Seiko calibers and listed...
What is a Flyback Chronograph? In a traditional chronograph watch, the button sequence is top (start), top (stop), bottom (reset)....
If you have a watch geek in your life, you probably want to get them a watch related gift but...
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...
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Recent Comments
Looking good! Thanks for sharing your watch with the community. If anyone wants to purchase…
My new Militado ML-05 featuring a VH-31 caliber
Some "Hanoi Special" Seiko 5/Rado Silver Star used Citizen's 8200 for some reason. They even…
I think Sunon actually use Seiko's parts, the SL28's date wheel was from Seiko's PC32/PC33.
From what I can see, the coil is damaged. I put a new battery but…
I have a Bulova 97B110 in need of repair. It was my Dad's and he…
Thank you for that. Keep checking eBay. Since Bulova is not repairing them, as they…