Help required to Identify and Value a Ladymatic Seamaster

Hi all

please help with the identification the ladymatic seamaster below it was given to my wife by a distant aunt in her will and would like to know more about it i am a bit worried about opening the back just in case i damage it. any help is appreciated .

Thanks

From Omega Vintage Database:

Ladymatic Ladies' leather strap
Reference ST 566.0001
International collection 1965

Movement Type: Automatic (mechanical)
Caliber number: 681, 24 jewels
Central sweep second hand.
Created in 1963

Functions Date
Case Stainless steel
Case back Press-in
Dial With hand-riveted solid gold hour markers and “bâton losange ” hands.
Crystal Armoured hesalite
Bracelet Leather
Water resistance 30 meters



As for your watch value, unfortunately vintage ladies watches' market is very thin. USD 100-200 would be my best guess if you can find a buyer.

I would suggest you take it to a qualified watchmaker near your place (not necessarily Omega since it will be bit expensive), and have it clean and lubricate. Your wife could cherish it because (A) it is a gift from her beloved aunt (B) it is a successful and famous Omega line during its time.