Strap for Master Collection Date 38.5 Two Tone Rose / Diamond

The Longines Master Collection L2.628.5.97.7 features a lug width of 20mm. This dimension corresponds to the distance between the lug pins on the case and is the standard specification for this model. To verify compatibility, measure the internal space between the strap attachment points using a digital calliper.

The choice depends on intended use and personal style. For formal contexts and classical versatility, natural or dyed alligator is recommended, offering elegance without ostentation. Vegetable-tanned calf leather provides natural patina that ages visibly. For business-casual wear, shell cordovan delivers intrinsic lustre and tear resistance. For casual contexts, heavyweight NATO fabric or Tropic rubber maintains the watch's versatility.

Obtain a spring bar remover tool or visit a qualified watchmaker. Position the tool to remove the spring bars—the small elastic pins securing the strap to the case lugs. Apply gentle pressure and the strap will detach. Insert the lugs of the new strap into the case holes and secure the new spring bar. If unfamiliar with the procedure, consult a professional to prevent damage.

Yes, any strap featuring a 20mm lug width is compatible with the Longines Master Collection L2.628.5.97.7. High-quality artisanal aftermarket straps, such as those by Casati Milano, often offer superior finishing and material selection compared to the original strap, whilst maintaining full technical and aesthetic compatibility.

Longevity varies based on material, usage patterns and maintenance. A high-quality alligator or calf leather strap typically lasts 2–4 years of daily wear, with potential extension through professional restoration. Shell cordovan is more resilient and may last 4–6 years. Proper care—avoiding excessive moisture, protecting from prolonged direct sunlight, and applying leather conditioner—significantly extends lifespan.