Chronometer Quiz
You’ve read about COSC results here recently, but how much do you know about chronometer testing and certification? Here are a dozen multiple choice and true-false questions, plus an extra-tough bonus question, to test your chronometer knowledge. Will you achieve the accuracy required to earn your certificate? Take this test in 3 positions to find out. Answers appear at the end. 1. Which of these brands submit all of their movements to COSC?A. BreitlingB. ZenithC. Ball Watch Co.D. Ulysse Nardin2. The two Swiss cities that hosted observatories that performed official chronometer tests from the mid-1800s to the mid-1900s were:A. Neuchatel and Le LocleB. Zurich and GenevaC. Bienne and La Chaux-de-FondsD. Geneva and Neuchatel3. The COSC tests:A. Fully cased-up watches with the crystals removed.B. Movements in cases, but with no crystals or casebacks.C. Movements with dials and hands only.D. Movements only4. True or false: COSC certificates report results in 4 languages: French, Germa

Ambrelus Dreadnought Takes Watch Winder Design To New Level
Is this haute watchwindery? Watch winders are something that many people just do not even think about very much. Sure, you might poke around at some of the more inexpensive models when you pick up a couple of automatic watches, but that is generally where the interest stops. For those looking for something better (i.e., quieter and more reliable) the sky is the limit (as is your wallet). Jumping feet first into the luxury end of watch winders is the Ambrelus Dreadnought.Now, at first glance, I knew this was a watch winder unlike any I had seen before. While many higher-end winders want to tuck things behind a polished veneer of wood and glass, the Ambrelus Dreadnought instead celebrates a very mechanical aesthetic. You have machine-turned metal surfaces (supposedly to call to mind guilloche patterning), mechanical toggle switches, and analog voltage and amp meters give the whole thing a feeling of something that belongs on the shelf of a tube-amp audiophile.To my eye, that is not a bad

Hands-On: The Arnold & Son Golden Wheel
Arnold & Son is offering their take on the historic "wandering hours" concept with their new Golden Wheel watch. Introduced at Basel earlier this year, the Golden Wheel is reminiscent of modern watches like Audemars Piguet’s Star Wheel collection, and Urwerk’s imaginative UR-103. The wandering hours complication itself dates back to the mid-17th century in the form of table clocks, and made its way into pocket watches by the following century. Arnold & Son is putting their own classical spin on the complication with the Golden Wheel. 1 OF 3 The Golden Wheel is unmistakably Arnold & Son. A variety of materials, decoration, and layers work together to form an unorthodox dial. A grey base dial plate of NAC with Geneva striping provides contrast for the transparent discs with gold numerals. Time is read against a mother-of-pearl plate that spans the top of the dial between 10 and 2 o’clock (on a more traditional dial). Much like the AP

Breitling Navitimer World (Latest Addition)
My first and only Breitling. The Breitling Navitimer World. I considered getting a regular Navitimer for my last watch and decided to get a Pam000 instead. So when I saw the Navitimer World, I just knew this one was the one for me.I like history of this watch, the connection to flying, the slide rule function, the chronograph, and the GMT functionality with the red fourth hand. At 46mm it's the biggest dial I currently have on any watch, but it really doesn't wear that large on my wrist.

Details of production numbers per reference?
Hello fellow enthusiasts,Quick question. Does anybody possess information where it states the number of watches produced per year for a certain reference?For example. Ref PAM 112N series 2000P series 1200R series 1500If anyone has the database with the model numbers could you share that? Would be great to know more of the facts and figures. Thanks everyone.