Technical Archive

Omega
Constellation 1631.77.60

Omega Constellation 1631.77.60: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Constellation Quadra Quartz 19.3 Yellow Gold / Yellow MOP

Technical Specifications

Omega 1631.77.60
Reference

1631.77.60

Movement

Omega caliber 1376 Hours, Minutes

The Heritage

The Constellation represents one of Omega's historic collections, characterized by the distinctive design with an integrated crown. This model mounts the Omega 1376 quartz caliber with hour and minute indication. The 1631.77.60 reference features a classic configuration of the Constellation line.
Made to Measure

The strap for this watch is made to measure

On the Omega Constellation the bracelet is drawn as part of the case: no catalogue strap will fit. In the atelier we take the measurements on the watch itself and build the strap on the piece — that is the work of Casati Milano.

Book a consultation →

FAQ

Which strap material pairs best with the Constellation 1631.77.60 in yellow gold?

For a yellow gold Constellation, recommended materials are high-quality calf leather, alligator or crocodile for formal occasions, and shell cordovan for those desiring a textured material with memory and patina development. Vegetable-tanned crocodile ensures durability and elegant aging parallel to the gold. We advise against synthetic materials that do not reflect the qualitative value of the timepiece.

How do you change the strap on an Omega Constellation 1631.77.60?

Strap replacement is accomplished by removing the two spring bars that protrude from the case lugs. Obtaining a spring bar remover tool is essential. Insert the tool into the lug slot to compress the spring bar, then gently extract it. Once the old strap is freed, insert the new strap by aligning the spring bars into the holes and compressing them until they snap into position. Never force manually.

How long does a leather strap typically last on a Constellation 1631.77.60?

A high-quality leather strap with vegetable tanning and artisanal craftsmanship lasts 4-6 years under normal wear conditions (3-4 days per week). Longevity depends on ambient humidity, direct sun exposure, and cleaning frequency. Leather tends to dry over time; it is recommended to occasionally apply protective oils specific to leather. Milano Straps provides an 18-month warranty on all custom straps.

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 →

By appointment only · Milan

The atelier's website: casatimilano.com