Strap for Constellation Master Chronometer 41 Sedna Gold / Sedna Meteorite

The lug width of the Omega Constellation 131.50.41.21.99.002 is 20 millimetres. To verify it, remove the original strap and measure the distance between the centres of the two spring bars that insert into the lateral lugs of the case.

Alligator represents the most refined choice, while vegetable-tanned calf offers elegance with natural patina developing over time. For a sportier profile, rubber and NATO are valid alternatives. Shell cordovan combines density and luminosity, developing a deep patina over the years.

Use a spring bar remover tool, inserting it gently under each spring bar to release the internal spring. Extract the bars from the case, slide off the old strap, thread the bars into the new strap, and reinsert them into the case lugs until you feel the locking click.

All straps with a 20 millimetre lug width are compatible. Milanostraps offers a dedicated collection of 20mm straps in alligator, calf, cordovan and rubber, customisable in colour, initials and stitching thread, with 18-month warranty from Casati Milano.

Durability depends on the material and usage. Alligator with vegetable tanning and shell cordovan resist 5-7 years with regular care. Classic calf lasts 3-5 years. Natural rubber offers 2-3 years. Seasonal rotation between straps significantly extends the life of each one.