Antique Military BOVET PRIMA WWII Pilots Chronograph Wrist Watch Telemetre 17J

Antique Military WWII Pilots BOVET PRIMA Chronograph Wristwatch Telemetre Swiss 17 Jewels. This is an Antique/Vintage Bovet Prima Chronograph Telemeter (Telemetre) Swiss Wristwatch, made and worn by the Military Aviation Pilots during or after the WWII. This Vintage/Antique Bovet Prima watch is an ideal piece for someone looking for a classic model that is both collectible and wearable at the same time.

It has a beautiful dial with many detailed Latin numerals. The watch has a chronograph and a telemeter - a tool that is used for measuring distance. This specific Telemeter is suited to measure speeds and distances for pilots and airplanes. Diameter with the crown: 34mm.

I personally have contacted Bovet regarding its authenticity and they confirmed that the watch is authentic. Thank you very much for your interest about BOVET 1822 and for your request about your timepiece.

I'm happy to confirm that this timepiece is an authentic BOVET timepiece produced between 1945 and 1962. For a complete and perfect authentication we need to have the timepiece in our workshop but in the base of the different pictures I could say yes at 99.99% for all the principal components (case, movment dial). This is a special military air force (Aviation) wristwatch in almost perfect condition for its age. It has been serviced and works perfectly.

Those specific models were mostly used by Military People in high ranks such as Officers and Pilots in the Aviation, they were the watch of their choice because of the Telemeter and Chronograph options the watch offered. The watch has been serviced by the official authorized/approved service of Longines-Bulgaria. The glass is free of scratches (only miniature cracks caused by time, also hardly visible), there might be some but hardly visible to the naked eye.

In my opinion this miniature cracks makes it even more beautiful and authentic and suits the watch well. The dial has no scratches or damage such as dents. The Dial is clean it may have some hardly noticeable specks caused by time, but hardly visible for the naked eye.

The stainless steel body is also in good condition, there are some slight wear of spots on the chrome and miniature scratches dents, but hardly visible to the naked eye. Keep in mind that this is an Antique watch not a brand new one.

The crown is not the original one, but I think that it fits perfectly to the shape and size of the watch. The condition is as you can see it on the pictures. We have fitted the watch with a high quality genuine leather strap/band.

This is in mint condition and has not been worn. This is not a genuine Bovet strap, though it is very similar in appearance and construction to that which would have been supplied with the piece when new. As you can see on the photos, the mechanism is very complicated - designed for military purposes (I explained the topic upper in the description).

This Bovet PRIMA model is rare and it deserves its place in the world's finest collections of old military items. There will be NO possible way for the watch to get any damage during the transportation. In other words you will receive the watch exactly as it is on the pictures in WORKING CONDITION. General information on Chronograph and Telemeters and how they work. Any chronograph models are equipped with the tachymeter scale on the watch bezel or surrounds the dial.

It tells you the traveling speed over a fixed distance in km/hour or miles/hour. You can also use it to measure a production process in units/hour. While the scale markings may look complicated at first glance to the uninitiated, reading the tachymeter is really easy.

Oh, before you start using the tachymeter, your watch should be in the chronograph (stopwatch) mode where the second hand is resting still at the 12 o'clock position. Many of you already knew that but this is just a gentle reminder, just in case. Start the chronograph at a starting line or marker.

Stop the chronograph at the next kilometer or mile marker. The value on the scale at which the second hand is pointing indicates the speed in km/hour or miles/hour depending on the unit of distance used. For example, we want to know the speed of a moving car.

Start the chronograph when the car passes a predetermined starting line or marker A, and stop the chronograph when the car passes the next line or marker B, 1 km (or mile) away. The second hand is pointing at 6 o'clock. Read the tachymeter value at that position and it shows 120, telling us that the car was traveling at a speed of 120 km/h (or miles/h). What if the distance is less than a km or mile?

No problem, but a little simple calculation is required. For example, we want to know how fast a 200m athlete is running. Start the stopwatch when the race starts, and stop it when the athlete crosses the finishing line.

Let's say the athlete crossed the line at 20 seconds. The tachymeter value at the 20 second mark (4 o'clock position) shows 180, which means 180 km/h if the distance timed was 1 km. But the athlete only ran one-fifth of a kilometer. Therefore, we need to divide 180 by 5 (1/5 of 180) to get 36 km/h, which is the speed of the athlete in that 200 m race.

What if the object is traveling very fast? Again, a little simple calculation will do. Let's say an aircraft took 35 seconds to cover a distance of 10 km.

The tachymeter shows us a speed of 100 km/hour at the 35 seconds mark. However, 10 km have been traveled.

Therefore the speed of the aircraft is 100 x 10, which is 1000 km/h. Measuring Production Process in units per hour. If the production process takes 18 seconds to churn out one unit of product, the tachymeter value at that position reads 200.

This means the process has a production output rate of 200 units per hour. How to read the Telemeter. Some watches are equipped with the telemeter scale, which tells you the approximate distance between the user and an event that can be both seen and heard. The scale is usually defined in kilometers or miles depending on the watch model. Examples of events that are seen and then heard are lightning and thunder, fireworks and artillery firing.

Here's how to use the telemeter. Start the stopwatch when the event is seen. Stop it when its sound is heard. The telemeter scale value at which the second hand is pointing is the approximate distance between your position and the event.

In the example shown, the distance is 8.7 km. The telemeter scale makes use of the principle of the speed of sound. As such, telemeter scales on chronograph watches are generally calibrated based on the speed of sound at sea level, which is calculated to be approximately 340 m/s.

At the 30 seconds mark, the telemeter tells us the distance to the artillery firing (heard 30 seconds after sighting the firing) is approximately 10 km. If your watch is not equipped with a telemeter scale, you'd still be able to find out the approximate distance to an event that is seen and then heard. Based on the speed of sound, you can simply calculate the distance using the good old equation.

Distance = Speed x Time. So, knowing the speed of sound to be 340 m/s and the time elapsed between the event seen and heard is 30 seconds, the approximate distance is therefore 10,200 m, which is 10 km as shown on the telemeter scale above. Here is a youtube video as an example. Watch this tutorial video to know how to use your telemeter function on your chronograph. You can see the measurements on the photos.

It is in nice working condition. The watch is in good overall condition. Of course, there are some slight scratches.

(and wear off place on the gold plating), but in overall good condition. Are hardly visible to the naked eye, it's inevitable, considering the item's age. The mechanism is working perfectly, the watch has been well serviced. The condition is as you can see it in the photos.

The Retro watch/clock is nicely working (keep in mind that old watches can always show small defects, so please don't expect them to run as they were new). There is always the possibility the mechanism to slow or hasten in time, this can be adjusted manually. When purchasing multiple items, please wait for combined invoice before paying. Is provided after the item has been handled. The Item must be in its original condition.

Find us on Google: Antique Treasure Store. We are the owners of a small local antique store. During our travels throughout Europe, we collect unique and authentic items from various and old forgotten places.

We have over 20 years experience in the antique trading business. What we can offer you is a growing collection of antique treasures waiting for you to discover in Antique Treasure Store. Is provided after the items has been handled.

We have over 20 years experience in the antiques trading business. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "antique-treasure-store" and is located in this country: BG. This item can be shipped worldwide.

Features: Chronometer, 12-Hour Dial, Chronograph
Case Size: 34mm
Manufacturer Warranty: None
Age Group: Adult
Lug Width: 17mm
Dial Color: Black, White
Department: Men
With Service Records: No
Serial Number: 313008
Display: Analog
Extra Links: No
Water Resistance Rating: Not Water Resistant
Case Color: Silver
Country/Region of Manufacture: Switzerland
Case Material: Stainless Steel
Water Resistance: No
Indices: 12-Hour Dial, Arabic Numerals
Case Finish: Chrome
Model: Prima
Band Material: Leather
With Booklet: No
Year Manufactured: 1940-1949
Chronograph Type: Chronograph
Seller's Warranty: No
Band Color: Brown
Brand: Antique
Style: Luxury: Dress Styles, Antique, Military
Gender: Men's
Number of Jewels: 17 Jewels
Band Type: Two-Piece Strap
Certificate: No
Type of Certificate: no
Watch Shape: Round
Movement: Mechanical (Hand-winding)
Type: Wristwatch