Omega · Constellation
Strap for Constellation Quartz 27 Polished Stainless Steel / Red Gold / MOP
Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Constellation 123.20.27.60.05.003 (aka: 12320276005003)
Selected for the 16 mm lug width
The Constellation 123.20.27.60.05.003 (aka: 12320276005003), seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 123.20.27.60.05.003?
The lug width is 16mm. This measurement refers to the internal distance between the two case lugs where the strap is attached. It is essential to ensure the aesthetic and functional compatibility of any strap.
What strap materials are recommended for the Constellation 27mm?
Alligator leather with orthoganal grain represents the highest standard for this reference. Excellent alternatives include vegetable-tanned calf leather (for those who appreciate a patina that matures over time), shell cordovan for elegant contrast, and hemp NATO for a more sporty and versatile aesthetic.
How do you change the strap on a watch with 16mm lugs?
To change the strap, use a spring bars removal tool to gently extract the spring bars from the attachment holes. Avoid applying excessive pressure to prevent damage to the case. Once the spring bars are freed, remove the old strap and insert the new one, ensuring that the spring bars lock correctly in their seats.
Is the strap I purchased online compatible with my Omega Constellation 123.20.27.60.05.003?
Yes, if the strap is specifically indicated for the 16mm lug width size. All Milano Straps are customizable in length and finish. To ensure perfect fit to your wrist, communicate the exact circumference and your preferences when placing your order.
How long does a leather strap last on a watch worn daily?
A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts on average 3-5 years with daily use, provided regular maintenance. Avoid prolonged exposure to water and humidity. Milano Straps have an 18-month warranty and can be replaced with simple maintenance procedures.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

