Strap for Master Collection Date 25.5 Stainless Steel - Yellow Gold / White / Bracelet

The lug width of the Longines Master Collection L2.128.5.12.7 is 13 mm. This measurement refers to the distance between the two spring bar attachment points. To verify it accurately, position a digital calliper perpendicular to the longitudinal axis of the case, between the two lugs. Precise measurement is essential to ensure compatibility with a replacement strap.

For the Master Collection L2.128.5.12.7, fine noble leathers such as American alligator with refined grain or vegetable-tanned calf are recommended. Alligator pairs perfectly with the two-tone yellow gold and stainless steel case, developing a natural patina over time. For more versatile solutions, a silk NATO or structured FKM rubber maintains the perception of elegance whilst offering daily practicality.

To replace the strap, you must remove the spring bar that secures it to the lug. Use a specialist tool or a toothpick to compress the spring whilst extracting the strap from its seat. Then insert the new 13 mm strap, ensuring the spring bar clicks securely into place. If unsure, consult a professional watchmaker.

Yes, Milano Straps supplies straps specifically developed for the 13 mm lug width, fully compatible with the Longines Master Collection L2.128.5.12.7. All available models are tested to ensure precise fit to the lugs. You can personalise the strap in measurements, buckle length and stitching thread colour, either via the online service or at the Casati Milano atelier by appointment.

The lifespan of a leather strap depends on usage frequency and care. High-quality alligator or vegetable-tanned calf straps, if properly maintained (protection from excessive moisture, alternation with other straps), can last 3 to 7 years. Milano Straps guarantees personalised straps for 18 months. Patina and wear are natural signs of an authentic object that evolves over time.