Hello, my longines 14k 17J, case number 975099 Can you help me find the information about this watch?

Question edited for clarity and add maker.

This is a $3,000 watch! The answer is 'the same as the one that is in it'.

https://www.fixya.com/support/r27181038-changing_watch_batteries

Battery replacement in a Longines watch

Longines https://www.longines.com > battery-change

Find out how to arrange battery replacement in your Longines watch by a Longines partner.

This site gives maker information, but the serial number help is just waffle.

https://jules-jurgensen-serial-number-list.peatix.com/

To find what it is, click the images tab

https://www.google.com/search?q=Jurgensen+Ladies+Swiss+Wristwatch+17+jewels+rectangular+movement%2C+14K+gold+case

https://www.google.com/search?q=jurgensen+ladies+swiss+wristwatch+serial+number+lookup

..

Absolutely worth doing. It is a premium make and a $1,200 watch. They are nearly $700 used on the secondhand market.

Longines Lungomare L3.633.4 - Chrono24

https://www.chrono24.ca > Longines watches

Longines L3.633.4 Steel 2007 42mm pre-owned. Longines Lungomare Chronograph. NZ$1,511. + NZ$334 for shipping. Professional dealer. 4.89 (780).
NZ$1,176.00

• 
  

  Longines Lungomare for C$673 for sale from ... - Chrono24

  https://www.chrono24.ca > ... > Longines L3.633.4
  
  Longines Listing: C$673 Longines Lungomare, Reference number L3.633.4; Steel; Quartz; Condition Very good; Year 2007; Watch with original p.
  Movement: Quartz
  Bracelet material: Rubber
  Bezel material: Steel
  Bracelet color: Black $673.00 · ‎In stock
  
  https://www.google.com/search?q=Longines+Lungomare+L3.633.4+parts+%22UK%22
  
  ..

In the link, but the best way is to get it appraised at a local jeweler.

https://www.google.com/search?q=Lucien+Piccard+14K+gold+large+mens+watch+value

..

Free of charge from the company under warranty.

La Grande Classique de Longines L4.709.2.21.7

https://www.longines.com > watch-la-grande-classique-...

Discover the L4.709.2.21.7 quartz watch from the La Grande Classique de ... and let yourself be charmed by its stainless steel and yellow pvd coating strap.
US$1,300.00 · ‎In stock

What and when did you pay for the watch. This will tell if it is gold or gold plated.

There may be three number on the back of a watch.
1) The case number.
2) the movement number.
3) the serial number for the case +watch assembly.

This sort of information is only likely to be available from an authorised dealer.

If you go to the Boluva web site, you will be able to use their dealer locator to find the one nearest you.

Good day sir, here's the link below where you can buy your longines brown strap.
longines strap

have a nice day.

Follow this link - https://account.longines.com/en/faq/index/view/s/8-can-i-get-information-about-a-longines-watch-i-already-own

Go to History of my watch and it will tell you what info you need to send it.
Then contact service.
Its a hassle, but you will get the info.