What is a “Forrest Gump” Watch Movement? What Caliber Corner has coined a “Forrest Gump” movement or “Forest Gump” caliber...
Guides
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...
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...
According to Orient: Check the caliber number by referring to the model number of your watch or the case code...
Trending Comments
Longines Caliber L836.6
The differenece is the beat rate. 3Hz vs 5Hz. 6 beats/s vs 10 beats/s.
Orient Caliber F6922
I've had my Mako and Ray Orient watches with these calibers, I guess. Their performance…
Invicta Caliber JSD-006ZY
Apart from the fact, that there is no further information about this caliber anywhere, it…
Seiko Instruments (SII) Caliber VH31
the VH-31 movement coupled with solar or kinetic in a Seiko watch would sell like…
Miyota/Citizen Caliber 9051
I have the 9051 in my Fujitsubo, it appears to be within 3 seconds. I'll…
Active Caliber Listings
It might be a Chinese Standart-movement aka Tong Ji aka 7120 / SS7 with an…
Thank you for sharing your experience with the community. If possible, please submit images of…
Apart from the fact, that there is no further information about this caliber anywhere, it…
This £80 lorus has the y676c with Japan on the rotor
Minute hand on some ETA's 2-hand quartz movements run every 20 secs so that the…