OMEGA 64's / Constellation / Cal.561

Introducing the Omega Constellation, made in 1964 .

Constellation is Omega's flagship line, launched in 1952 , and is known as a chronometer series that has always pursued the highest precision.

As its name, which means constellation, suggests, the star emblem on the dial and the observatory medallion on the case back are its symbols, and since its launch it has been highly regarded as Omega's signature dress watch.

Constellation is a watch that exudes orderly beauty.
This particular watch has a rare dial with a cross line printed in the center.

The vertical and horizontal lines running across the sunray-finished silver dial give it an appearance that combines orderly beauty with a quiet sense of tension.

The index is an upright bar type with a black insert in the center.
This black line echoes the cross lines on the dial, highlighting the refined look of a precision instrument.
The hands feature sharp dolphin hands, combining visibility with elegance.
It features a date window at the 3 o'clock position, creating a beautiful balance between practicality and design.

A star is placed at the 6 o'clock position, quietly conveying the pride of Constellation.

The case has a simple round shape.
The sharp lines give the design just the right amount of tension, giving it a strong presence on the wrist.
The crown is also housed inside the case, highlighting its beautiful curves.
The case back is engraved with an observatory medallion, symbolizing OMEGA's pride in its pursuit of precision.

The movement is an automatic with 24 jewels, Cal. 561 .

This is a famous movement that was used in chronometer models in the 1960s , and is a highly refined caliber that combines high precision and durability.

The rotor and base plate are beautifully decorated, and the interior is finished with no compromises.
This is one of OMEGA's most representative movements, and the artisan's aesthetic sense is evident even in the parts that cannot be seen.

Dimensions: Height: 39.8mm , Width: 35.9mm , Thickness: 10.6mm , Weight: 37g .

Its simple and neat beauty blends naturally with suits as well as casual styles such as shirts and knitwear.
The design, which is free of excessive decoration, adds a quiet elegance to your outfit and gives your wrist an elegant impression.

The condition of the case is good with only minor scratches from use and no noticeable damage.
The dial is in beautiful condition with no signs of wear or corrosion.
The movement is running smoothly and the calendar function is working without any problems.

The leather strap is an aftermarket product, but the buckle is a genuine Omega buckle.
Comes with original Omega Constellation box.

All watches sold in our store are inspected internally by a professional watch mechanic upon arrival and are only sold after being determined to be genuine, so you can use them with confidence.


When you purchase a watch, we will ship it to you with a brand new leather strap.
Please select the color you want from the order selection tab and place your order.
*For products that come with the original watch strap or metal band, the leather strap will not be attached and will be sent separately as a spare.
We will also include a special case for the watch when shipping.

Please be sure to read the following information after purchasing an antique watch.

When selling antique watches at RESUME, we do not immediately hand over the watch to you upon receiving your order. Instead, we have a professional overhaul (hereinafter referred to as OH) the watch, and then we deliver it to you after the OH is completed. (This takes about 1-2 months.)

Our specialized craftsmen, who are first-class watch repair technicians, will completely disassemble your watch, replace worn parts such as internal gaskets, clean it, oil it, and perform a thorough overhaul, maintaining it to a daily accuracy of about ±1 minute.
When we deliver the machine to you, we will also send you our own overhaul certificate, which will show you what kind of overhaul work was done on the machine, as well as photos of the machine being disassembled and serviced.

Of course, since the product itself is a second-hand item, there is no guarantee that it will never break, but we ask for your understanding that we have taken this approach so that you can enjoy the watch's inherent performance and use it with peace of mind in the future.

When you purchase a product, we offer a one-year warranty depending on the model. Even if the warranty has expired, we will still repair the product for a fee. If there is no repair shop nearby, please feel free to contact us.