Auction - Constellation 168.001 37mm Automatic Caliber 561

Hello everyone,

As I am browsing the internet looking for my first vintage omega I found this piece on an auction site. The condition seems great and the auction will start in a couple of days with no reserve. It's not the gold watch I am looking for but if I manage to get this for a decent price I'll be more than happy.
Now here comes my question. How high should I go for a watch in this condition as the estimated price on the website says $3,913-$5,087?
To me this seems a bit excessive but I could probably go up 1200-1400 USD for it (without the 25% premium buyer fee).

What are your opinions?

This is all the information listed.

Description​

OMEGA Constellation 168.001 37mm Automatic Unisex Watch Caliber 561
Discover the timeless elegance of the OMEGA Big Constellation 168.001 wristwatch, a unisex classic from around 1968. This stunning timepiece features a 37mm stainless steel case and a matching stainless steel belt, ensuring durability and style. The sleek silver dial is complemented by an automatic movement with caliber 561, providing reliable performance. Although it shows minor scratches from use, the watch is in very good condition for its age, with clear visibility on the dial. Notably, the mechanism has been overhauled, ensuring accurate timekeeping. Please note that this model is non-waterproof and comes without any accessories.

Specifications

Brand: OMEGA
Type: wristwatchModel number: 168.001Year: Around 1968
Case size: 37mm (excluding crown)
Wrist size: 18cmLug width: 18mmCase material: Stainless steel
Belt material: Stainless steel
Buckle: Single-opening
Glass material: Plastic
Dial: Silver
Movement: Automatic
Caliber: 561
Waterproof: Non-waterproof
Specifications: Date
Condition: Rank A
Notes: Minor scratches due to use, dial shows thin aging, mechanism overhauled, light rotor and crown winding feel.

FYI, the photos you've shared seem to match (several same exact shots minus the C24 watermark) this watch up on C24 which is listed for $2265: https://www.chrono24.com/omega/----168001-cal561----id38572793.htm

I don't see a $2200 watch. The range you're comfortable with ($1200 - $1400) is more in line with where I'd value it at.

OhMEGA