Longines · Heritage
Strap for Heritage Flagship Moonphase Stainless Steel / Silver
Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Heritage L4.815.4.78.2 (aka: L48154782)
Selected for the 19 mm lug width
Hammered Calfskin Strap Light Blue€98
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
The Heritage L4.815.4.78.2 (aka: L48154782), seen from the bench
Frequently asked questions
What is the lug width of the Longines Heritage L4.815.4.78.2?
The lug width is 19mm, measured between the inner shoulders of the lugs. Measurement should be performed with a digital calliper positioned perpendicular to the lugs, excluding the outer diameter of the lug tubes themselves.
Which strap is recommended for the Longines Heritage L4.815.4.78.2?
For this 38.50mm heritage model, we recommend alligator with medium grain in cognac brown or natural black, or vegetable-tanned calf leather to develop patina over time. Both materials respect the original vintage aesthetic whilst maintaining contemporary versatility for diverse occasions.
How do I change the strap on my Longines Heritage?
Remove the lugs from the lug tubes using a spring bar tool. Position the tool on the inner spring of the lug, apply gentle pressure, and when the spring retracts, withdraw the lug from the fixing holes. Repeat for both sides, then install the new strap by reversing the procedure.
Can I use aftermarket straps on my Longines L4.815.4.78.2?
Yes, any strap with 19mm lugs is compatible, provided the lug ends are correctly dimensioned (tolerance ±0.5mm). We recommend bespoke artisanal straps manufactured specifically for this width to ensure perfect fit and long-term durability without mechanical stress on the case.
How long does a leather strap last on this watch?
A quality leather strap with vegetable tanning and artisanal finishing lasts approximately 3-5 years with daily use and ordinary maintenance. Durability depends on ambient humidity, frequency of use, and care practices. Prolonged exposure to sunlight and water reduces longevity. Natural leather ages elegantly, developing personal character over time.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
