The Breitling Watch Blog

I have just posted a new video review of the Schaumburg Lindburgh & Benson Aquamatic COSC Certified watch. Really nice watch, with fantastic wrist presence.

The L&B Schaumburg Aquamatic watch really stands out from the wrist and has a neat military look to it. Goes super deep and has a helium valve like any good diver watch.

Check it out:

Got another vintage Breitling Identification question from a visitor… any help would be appreciated! The question goes like this:

“I recently purchased this ladies Breitling watch that I am trying to find information on. Here are the markings I can see on it: It has a very unique gold case 7/8″ square (art deco looking) marked PLAQUE G 20. The dial face is 1/2″ Dia and is marked with a stylized B BREITLING GENEVE SWISS it is black with gold markings and hands.

The back looks like steel and is marked with the stylized B BREITLING 5519 on the outside and FOND ACIER INOXYDABLE 742452 MOD DEPOSE F.F.M (and some other no’s scratched in probably by a repair man that are hard to see) on the inside. There is a metal cover over the movement, the movement is marked with a stylized B and BREITLING. It has been almost impossible to find any info, any information would be greatly appreciated.”

Here are the photos, and some insight in addition to the video review that was posted earlier.

The Breitling for Bentley Motors is my favourite watch, and probably draws the most looks and remarks… some for its sheer size, and some for it’s beauty.

With the distinctive Knurled Bezel that is a Bentley trademark, the watch does not go unnoticed, and the wide, shallow dial gives extremely easy reading with a bold statement in style. Applied stainless steel indexes and a gloss white dial, guilloche subdials all add to the elegance of the watch.

The beautiful large applied wings logo looks fantastic in the 12 o’clock position, and inside beats a 30 second chronograph which is more accurate than your standard chronos. Subseconds are located at 3 o’clock. Slide rule bezel with inner gear system that allows the watch to be more water resistant white still using the inner bezel and without the inconvenience of using a crown to turn the inner bezel like the IWC Aquatimer and Sinn 903.

The back of the watch is simple, with the model and some text engraved. Serial number and model numbers as well. The Breitling Bentley 6.75 has a much nicer caseback, and I wish this one did too.. but oh well!

But as you can see from the shot above, its all about wrist presence and class… and the Breitling for Bentley Motors has them both! This watch looks incredible on the wrist with it’s enourmous size yet maintains a level of class rarely associated with wrist clocks of this size such as the Breitling Super Avenger which tends to be less class, more bling/sporty.

Hope you enjoyed the pictures and short review of the Breitling Bentley Motors watch!

Have you ever wondered what exactly the COSC Certification for mechanical watches entails? I have – So I looked it up.

There are three labs all located in Switzerland that do the COSC certification: One in Geneve, one in Le Locle, and one in Biel/Bienne. The entire testing process takes 15 days, and the watches are tested in five positions. The watches are tested as movement only, and do not come with hands or anything. Automatic movements have the rotors detached during testing and three temperatures are tested as well. 23 Degrees Celcius is the main temperature tested.

NOTE: I have received conflicting information as to whether the second hand attachement and rotor removal is done by the COSC or by the company sending the movements in. Initially I had read that it was done by the company sending it in and not the COSC, but have not been able to find reference to that anymore. Any information would be great!

15 Days for Mechanical watches

Day 1 : 23 Degrees Celcius – Vertical – 6 o’clock up
Day 2 : 23 Degrees Celcius – Vertical – 6 o’clock up

Day 3 : 23 Degrees Celcius – Vertical – 3 o’clock up
Day 4 : 23 Degrees Celcius – Vertical – 3 o’clock up

Day 5 : 23 Degrees Celcius – Vertical – 9 o’clock up
Day 6 : 23 Degrees Celcius – Vertical – 9 o’clock up

Day 7 : 23 Degrees Celcius – Horizontal – Dial Down
Day 8 : 23 Degrees Celcius – Horizontal – Dial Down

Day 9 : 23 Degrees Celcius – Horizontal – Dial Up
Day 10 : 23 Degrees Celcius – Horizontal – Dial Up

Day 11 : 8 Degrees Celcius – Horizontal – Dial Up
Day 12 : 23 Degrees Celcius – Horizontal – Dial Up
Day 13 : 38 Degrees Celcius – Horizontal – Dial Up

Day 14 : 23 Degrees Celcius – Vertical – 6 o’clock up
Day 15 : 23 Degrees Celcius – Vertical – 6 o’clock up

Seven things tested for Mechanical watches

1. Over the first 10 Days the average daily rate must be within -4/+6 seconds
2. Mean variation in rate cannot be higher than 2 seconds in any single position
3. Greatest variation in rate between any 2 days cannot be more than 5 seconds in any single position
4. The difference of the rates in the vertical and horizontal positions cannot be more than -6/+8 seconds
5. The difference between the main daily rate and any individual rate cannot be more than 10 seconds
6. Variation in temperature cannot be more than 0.6seconds per degree
7. Difference between the mean daily rate of the first two dates compared with the the last two dates cannot be more than 5 seconds.

Many brands do not submit to COSC, and feel that their watches are good enough on their own merit. This may be true, but COSC does have its place, and at least in my opinion, it is not a gimmick. It provides the end-user with a third-party certification that their watch is accurate. That is nice to have, though, not necessary in most cases.

Quartz watches have a different set of parameters that must be met.. perhaps we’ll discuss those in a different post 🙂

A new watch classifieds site is now open, dedicated to Canadians. This makes it easier for Canadians to connect with other Canadians to buy sell and trade watches, without the hassles of customs and taxes and import duties.

This is a brand new site and will need your support to keep it going! Please visit and start listing your watches for sale/trade if you are Canadian!