Omega · Constellation

Strap for Constellation Quartz 33.5 '95 Yellow Gold / Champagne

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter34 mm
Reference1112.10.00
FamilyConstellation
MovementOmega caliber 1532 hours, minutes
CaseYellow Gold

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Constellation 1112.10.00

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Constellation 1112.10.00, seen from the bench

The Omega Constellation 1112.10.00 is the mature evolution of an icon born in 1952. The 33.50mm yellow gold case features conical baton indices, a classic dial, and integrated Manhattan bracelet. It houses the Omega 1532 calibre, a manual mechanical movement. The 20mm lug width ensures strap interchangeability and proper ergonomics. Swiss manufacturing precision defines every detail, from bevelled edges to brushed finishing.

Frequently asked questions

What is the lug width of the Omega Constellation 1112.10.00?

The lug width of the Omega Constellation 1112.10.00 is 20mm. This specification is crucial for purchasing compatible straps and must be measured from the inside of one lug to the inside of the other, perpendicular to the longitudinal axis of the case.

What is the best strap for the Omega Constellation 1112.10.00 in yellow gold?

For the Constellation 1112.10.00 in yellow gold, natural alligator or shell cordovan represent the finest choices. Alligator creates aesthetic continuity through its regular grain that does not compete with the metal; shell cordovan with vegetable tanning offers a patina that evolves over time, lending character to the watch.

How do I change the strap on the Constellation 1112.10.00?

Changing the strap requires the use of a spring bar tool. Position the watch on a stable surface, locate the horizontal pins connecting the strap to the case, gently press inward with the tool to compress the internal spring, and slide the pin outward. Reverse the procedure to install the new strap, ensuring the pin is correctly positioned in both lugs.

Can I use non-official Omega aftermarket straps on my 1112.10.00?

Yes, all straps with a 20mm lug width are compatible with the Constellation 1112.10.00. Many artisanal 20mm straps offer superior construction quality to official models, featuring premium leathers and bespoke craftsmanship. It is important to verify that the lug finishes are consistent with the aesthetic of the watch.

How long does a natural leather strap last on the Constellation 1112.10.00?

A quality leather strap, crafted with vegetable tanning or shell cordovan, lasts on average 3-5 years if subjected to daily use and routine maintenance. Prolonged exposure to sunlight, moisture, and perspiration accelerates aging. The leather progressively thins and stitching may fail. At Casati Milano, custom straps include an 18-month warranty and can be restored through professional re-stitching.

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