Question 1

What is the lug width of my Omega Constellation 123.20.27.60.52.002?

Accepted Answer

The Omega Constellation 123.20.27.60.52.002 uses a lug width of 20mm. This specification is essential when purchasing compatible straps: always verify the distance between the spring bars that attach the strap to the case, as even a 1mm difference causes mechanical incompatibility and risks damaging the lugs.

Question 2

What is the best replacement strap for the Constellation 123.20.27.60.52.002?

Accepted Answer

Given the two-tone case (rose gold and steel) and the black lacquered dial, we recommend a black alligator with hand-stitching: the crocodile texture echoes the geometric rigor of Omega's signature on the bezel, while the black creates visual continuity with the dial without competing with the precious metals. Alternatively, a black calf leather with vegetable tanning offers a natural patina that evolves over time, enhancing the watch's artisanal spirit.

Question 3

How do I change the strap on my Omega Constellation 123.20.27.60.52.002?

Accepted Answer

Strap replacement is a straightforward operation with the correct tool. Position the watch on a stable surface; use a spring bar tool (the specialized lever) to compress the small metal springs (spring bars) that hold the strap in place. Insert the lever into the space between the lug and case, push upward gently to release one side of the spring bar, then remove the old strap. Repeat on the other side. Install the new strap by aligning the spring bars with the lug holes on the case and press until you hear a safety click. Avoid sudden movements to prevent scratching the case.

Question 4

Are there aftermarket straps compatible with the Omega Constellation 123.20.27.60.52.002?

Accepted Answer

Yes, any strap with a 20mm lug width is mechanically compatible. However, we recommend choosing certified quality artisanal straps: the Constellation deserves constructive thickness, hand-stitching craftsmanship, and finishing that respects the value of the two-tone case. Milano Straps offers online a curated collection of 20mm straps that are customizable in leather, color, and initials, with quick delivery times.

Question 5

How long does a leather strap last on my Constellation 123.20.27.60.52.002?

Accepted Answer

Durability depends on the tanning method, use, and climatic conditions. A high-quality calf leather strap with vegetable tanning typically lasts 3-5 years with moderate daily wear; vegetable-tanned alligator can last 6-8 years because the fiber is naturally more resistant. Factors that accelerate wear: direct sun exposure, frequent immersion in fresh water, salty sweat, extreme temperature fluctuations. The patina that forms is part of the beauty of natural leather; true signs of wear appear after years of constant wear.

Strap for Constellation Quartz 27 Brushed Stainless Steel / Red Gold / Silver Silk

Straps for the Constellation 123.20.27.60.52.002 (aka: 12320276052002)

The Constellation 123.20.27.60.52.002 (aka: 12320276052002), seen from the bench

Frequently asked questions

The right strap isn't chosen. It is built, together.