Strap for Constellation Quartz 27 Brushed Yellow Gold / MOP

The lug width of the Constellation 123.50.27.60.05.002 is 20mm. This measurement is taken between the inner spaces of the two lugs where the strap is inserted. It is essential to respect this measurement to ensure correct strap insertion into the case lugs without play or forcing.

To enhance the 18-karat yellow gold of this model, the ideal strap is medium brown alligator or calf leather with vegetable tanning in chestnut tones. These materials amplify the warmth of the case without creating chromatic conflicts. For formal occasions, matte black calf offers timeless elegance. Rubber straps are excellent for daily and sports use.

The strap is changed using a spring bar tool to compress the springs that hold the strap to the lugs. Position the tool in the small slot next to the lug, retracting it slightly to release the old strap. Repeat on the other side. Insert the new 20mm strap by inserting one end of the spring first, then compressing the other to lock it fully in place.

Yes, any strap with a 20mm lug width is compatible with the Constellation 123.50.27.60.05.002. Verify that the strap has exactly 20mm width and that the attachments are standard (universal spring bars). Casati Milano handcrafted straps are available in various leathers and colors with this specification.

The lifespan of a leather strap depends on the tanning and usage. A quality alligator strap can last 5-7 years with proper maintenance (regular cleaning and drying after moisture contact). Calf leather with vegetable tanning tends to last 4-6 years. Rubber or NATO straps have a longer lifespan (8-10 years) but still require periodic cleaning. Casati Milano offers an 18-month warranty on all handcrafted straps.