Oris · Big Crown
Strap for Big Crown Small Second Pointer Day Stainless Steel / Black
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Big Crown 01 745 7688 4064-07 5 22 77FC
Selected for the 22 mm lug width · workshop selection
Grey Hammered Leather Strap with Ecru Stitching€98
Natural Calfskin Rally Strap€110
Vintage Brown Calfskin Strap — Natural Patina€98
Natural Calfskin NATO Strap€80
Black Saffiano Rubber Strap€105
The Big Crown 01 745 7688 4064-07 5 22 77FC, seen from the bench
Frequently asked questions
What is the lug width of the Oris Big Crown 01 745 7688 4064-07 5 22 77FC?
The lug width is 22mm. This measurement represents the distance between the two strap attachments on the case, measured centre-to-centre. This specification is critical for compatibility: only straps with a 22mm lug width will insert correctly into the Big Crown's attachment points.
Which type of strap is most suitable for the Oris Big Crown 01 745 7688 4064-07 5?
The Big Crown pairs exceptionally well with leather straps featuring vegetable tanning (cognac, taupe grey, mahogany brown) which develop patina over time, creating aesthetic harmony with the brushed steel case. NATO straps in recycled technical yarn offer formal-to-casual versatility. For maritime or sports use, FKM rubber or silicone deliver radical functionality. Alligator leather introduces structured texture whilst maintaining sobriety.
How do you change the strap on an Oris Big Crown 01 745 7688 4064-07 5?
Strap change is accomplished via the spring bars located on both lug attachments. Using a spring bar tool or specialised instrument, apply gentle vertical pressure to compress the internal spring, then extract the bar from the anchor holes. Repeat symmetrically on the opposite side. Insert the new strap by aligning its lug holes with the bars, then press until the retention click engages.
Can I use an aftermarket strap on this Big Crown?
Yes, provided the lug width is precisely 22mm. All compatible 22mm straps (leather, NATO, rubber) will function mechanically. Aesthetic compatibility depends on your preference: we recommend straps of construction quality comparable to the Oris case to avoid tactile and ageing discrepancies. Artisanal straps in vegetable-tanned leather or technical NATO guarantee longevity.
How long does a leather strap last on an Oris Big Crown?
A high-quality vegetable-tanned leather strap, with proper maintenance, lasts 3–5 years with moderate daily wear. Longevity depends on ambient humidity, direct sun exposure and frequency of use. Vegetable tanning develops fascinating patina during the first year. If exposed to extreme moisture or prolonged heat, durability diminishes. Technical NATO straps, being synthetic, last 5–7 years with minimal maintenance requirements.
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
