I DO NOT KNOW ANYTHING ABOUT WRISTWATCHES BUT I WILL DESCRIBE THE BEST AND HONEST AS I CAN...THIS IS A LONGINES LA GRANDE CLASSIQUE ACORDING TO AI.....THE WATCH HAS BEEN IN A DRESSER DRAWER FOR YEARS...THE WATCH IS BATTERY I THINK BUT IT DOESNT WORK..IT MAY JUST NEED A BATTERY....THE BAND I THINK IS ORIGINAL BUT IT IS BAD..IT HAS A FRONT CLIP MISSING AND IT HAS A CRACK IN IT.....THE BACK LOOKS LIKE GOLD    IT HAS LONGINES ON IT  A LOGO...SWISSMADE AND THE NUMBER 78958     WATER RESISTANT........I AM SELLING THIS AS IS     NO RETURNS..ALL SALES ARE FINAL.....AGAIN     ALL SALES ARE FINAL...NO RETURNS     SOLD AS IS......I RECEIVED ALOT OF INFORMATION ABOUT THIS WATCH FROM AI......IF IT IS NOT ACURATE I DONT KNOW ANY BETTER.....OFFERS AND QUESTIONS WELCOME....AGAIN   ALL SALES FINAL..SOLD AS IS    NO RETURNS...THANKS FOR LOOKIN