Technical Archive

Omega
Constellation 1847.73.31

Omega Constellation 1847.73.31: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Constellation Quadra Quartz 28 Chronograph Stainless Steel / Diamond / MOP/ Alligator

Technical Specifications

Omega 1847.73.31
Reference

1847.73.31

Movement

Omega caliber 5200 Small Seconds, Hours, Minutes | Chronograph

The Heritage

The Constellation reference 1847.73.31 is powered by the Omega Caliber 5200 with hour, minute, small second and chronograph functions. The watch is part of Omega's Constellation collection, a line characterized by the distinctive design with claws on the case. The movement offers the chronograph complication combined with the small seconds display on a dedicated subdial.
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.

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FAQ

What strap material do you recommend for an Omega Constellation 1847.73.31?

It depends on your use and the finish of the case. For a formal wrist presence and a patina that ages beautifully, a vegetable-tanned calf leather in cognac or hazelnut enhances stainless steel. For those who appreciate tactile luxury, black <a href="/pages/termine-glossario/alligatore">alligator</a> leather conveys an uncompromising presence. If you seek everyday versatility, a NATO strap in canvas or linen allows infinite color combinations while maintaining the collection's rigour. For durability, vegetable rubber is ideal if the model is destined for elegant sports contexts.

How long does a leather strap last on a watch worn daily like the Constellation 1847.73.31?

A quality calf leather strap, with vegetable or synthetic tanning, has an average lifespan of 3-5 years with daily wear. Longevity is influenced by ambient humidity, cleaning frequency, direct sun exposure, and type of perspiration. <a href="/pages/termine-glossario/alligatore">Alligator</a> and <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> offer superior longevity (5-8 years), thanks to the fibrous density of the leather. The 18-month warranty offered by Casati Milano for bespoke straps covers manufacturing defects and ensures priority replacement if useful life is compromised by manufacturing faults, not by natural wear.

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.

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By appointment only · Milan

The atelier's website: casatimilano.com