Omega · Constellation
Strap for Constellation Quartz 27 Brushed Stainless Steel / Yellow 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 123.20.27.60.05.002 (aka: 12320276005002)
Selected for the 16 mm lug width
The Constellation 123.20.27.60.05.002 (aka: 12320276005002), seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 123.20.27.60.05.002?
The model 123.20.27.60.05.002 features a lug width of 16 mm, a size proportionate to the 27 mm case diameter. This specific width must be respected to ensure correct strap alignment to the case lugs and the absence of unwanted mechanical play.
What is the best strap for the Omega Constellation 123.20.27.60.05.002?
Alligator remains the classic choice par excellence, particularly in cognac or black tones. For those preferring superior initial softness, vegetable-tanned calf offers magnificent aging. For more sporty contexts, raw silk NATO harmonizes elegantly with the two-tone nature of the watch.
How do you change the strap on the Constellation 123.20.27.60.05.002?
The change requires the use of a spring bar tool and gentle pressure on the lateral pins (lugs). Position the tool in the small slot of the pin, apply consistent pressure without sudden jerks, and the pin will retract allowing removal. The reverse procedure completes the installation of the new strap. If uncertain, contact Casati Milano for professional assistance.
Are there aftermarket straps compatible with this Omega model?
Yes, all straps with 16 mm lug width are compatible. Milano Straps offers a curated collection of 16mm straps in alligator, calf, shell cordovan and rubber, customizable in initials, sizes and thread color. The 18-month warranty ensures durability and construction quality.
How long does a leather strap last on this Constellation?
A quality alligator strap lasts an average of 5-8 years with daily use, developing a patina that increases aesthetic personality. Vegetable-tanned calf offers 4-6 years of longevity, while shell cordovan reaches up to 10 years thanks to fiber density. Longevity depends on environmental humidity, frequency of use and periodic maintenance.
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

