Antique Swiss Military Aviation EXACTUS Solid Gold 18K Chronograph Wrist Watch

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Antique Swiss Military Aviation EXACTUS Solid Gold 18K Chronograph Wrist Watch:
$899.00

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Item DescriptionAntique Swiss Military Aviation EXACTUS Solid Gold 18K Chronograph Wrist WatchDetails

This is an Antique/Vintage Exactus Chronograph Swiss Wristwatch, made and worn by the Military Aviation Pilots of spacial ranks during and after the WWII.

The wristwatch is made of Solid 18K Gold. The only not golden parts are the gold plated band, the cap of the back and the metal ring frame holding the mechanism.

The back is marked:

132

18K

0.750

900

There is a stamp of a persons head as well located right from the central stamp.

ThisVintage/Antique EXACTUS 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.

The watch is personally mine, Family heritage.

Size:Diameter with the crown: 38mm

Diameter without crown: 40mm

Lug width: 18mm (fixed bars)

This is a special military air force (Aviation) wristwatch in very good 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.

We have fitted the watch with a high quality metal gold plated strap/band. Which is in mint condition. I do not know if it is a genuine Exactus 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 Exactus model is rare and it deserves its place in the world\'s finest collections of old military items.

CONDITION:

The watch is in perfect condition, only hardly visible for the naked eye dents and miniature scratches can be seen. The only thing to note is a miniature scratch between 1 and 2 - look at the photos it is really hard to see.

REGARDING THE SHIPPING:

The watch will be shipped in a specially created for this watch box, this box is highly durable and will withstand weight, pressure, vibrations and any other ways of rough transportation conditions. I will make pictures of the box and watch before shipping it. 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. All watches I sent are being checked by an official authorized/approved service a day before shipping them.

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. Here\'s how. (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.)

Measuring Speed

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 theapproximate 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.

Although it is not a constant value since it is affected by factors such as altitude and temperature, thespeed of soundcan be specifically calculated usingmathematical formulas.

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.

Whether you are using a watch equipped with telemeter or making your own calculation, do remember that the distance is only an approximation due simply to the fact that thespeed of sound varies according to Environmental factors

Here is a youtube video as an example. Watch this tutorial video to know how to use your telemeter function on your chronograph:

The watch has been serviced by the official authorized/approved service of Longines-Bulgaria.It is perfectly working.

The watch is in perfect condition, only hardly visible for the naked eye dents and miniature scratches can be seen.The only thing to note is a miniature scratch between 1 and 2 - look at the photos it is really hard to see.

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.

PaymentWe accept payments with PayPal only.

Payment must be made within 8 days after the sale is closed.
If you need more time, please contact us through \'s message system.
When purchasing multiple items, please wait for combined invoice before paying.

ShippingWe provide Combined shipping. Please request invoice for multiple purchases.

Approximate time of delivery to the USA is 10-20 days.
Approximate time of delivery to Europe 10-15 days.
Approximate time of delivery to other parts of the world 15-30 days.
Handling time is 2-3 days. Tracking info is provided after the items has been handled.
We offer expedited shipping.

ReturnsIf You are unhappy with Your purchase, let us know before leaving
response and we will resolve any problems with your order.

We give you 100% Money Back Guarantee.
Buyer should contact seller within 14 Days after receiving the item.
The Item must be in its original condition.
Refund is given as Money back or exchange (buyer\'s choice).
Return shipping will be paid by the buyer.

ContactsShould you have any additional questions regarding the Item, please contact us. We will reply promptly and if you require more info, our customer support will be happy to oblige.

Social UsWe 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 antiques trading business. In 2008 we decidedto expand our business to .

What we can offer you is a growing collection of antique treasures waiting for you to discover in Antique Treasure Store. Our main goal is to ensure that our customerswill be 100% satisfied with their purchase.

PaymentWe accept payments with PayPal only.

Payment must be made within 8 days after the sale is closed.
If you need more time, please contact us through \'s message system.
When purchasing multiple items, please wait for combined invoice before paying.

ShippingWe provide Combined shipping. Please request invoice for multiple purchases.

Approximate time of delivery to the USA is 10-20 days.
Approximate time of delivery to Europe 10-15 days.
Approximate time of delivery to other parts of the world 15-30 days.
Handling time is 2-3 days. Tracking info is provided after the items has been handled.
We offer expedited shipping.

ReturnsIf You are unhappy with Your purchase, let us know before leaving response and we willresolve any problems with your order.

We give you 100% Money Back Guarantee.
Buyer should contact seller within 14 Days after receiving the item.
The Item must be in its original condition.
Refund is given as Money back or exchange (buyer\'s choice).
Return shipping will be paid by the buyer.

Contacts

Should you have any additional questions regarding the Item, please contact us. We will reply promptly and if you require more info, our customer support will be happy to oblige.