Strap for Constellation Master Chronometer Small Seconds 34 Stainless Steel / Blue - Diamond

The Omega Constellation 131.13.34.20.53.001 features a lug width of 21 millimetres, a specific parameter for this 34mm women's model. This width is determinant for the correct fit of the strap to the case and is not interchangeable with other Omega models. The measurement is performed by positioning a digital calliper between the inner edges of the two lugs on the case.

The best strap depends on intended use: medium brown alligator with vegetable tanning represents the classic choice that ages magnificently; vegetable-tanned calf is ideal for professional environments; shell cordovan offers exceptional durability for daily use with continuously evolving aesthetics; vulcanised rubber is the most practical solution for sports use. Your choice should also consider the dial colour of your specific reference.

Strap replacement is performed by removing the spring bars that secure the strap to the case lugs. Use a dedicated spring bar tool or a small plastic lever to apply controlled pressure on one of the bars, release the strap end, repeat on the other side. Next, insert the new strap by aligning it to the lugs and reinsert the spring bars. Never force any components: movement should be fluid to avoid damage to the lugs.

Yes, any strap with a 21 millimetre lug width is compatible with this Omega model. However, technical compatibility does not guarantee aesthetic harmony: a quality aftermarket strap must respect thickness (between 3.5 and 4 millimetres at the tip) and visual proportion with the 34mm case. Straps of artisanal quality, specifically made for this diameter, offer superior fit and proportion compared to generic straps.

A quality leather strap with vegetable tanning and artisanal manufacture maintains structural functionality for 4-6 years with daily use and routine maintenance (monthly cleaning with damp cloth, immediate drying). Shell cordovan, being denser, can last 7-8 years. Ageing is not a defect: leather develops patina and character, often enhancing overall aesthetics. Casati Milano's 18-month warranty covers manufacturing defects within this period.