Rolex · Submariner
Strap for Submariner 16618 Blue SuperLuminova
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Submariner 16618 Blue Superluminova
Selected for the 20 mm lug width · workshop selection
Matte Dark Gray Alligator Strap€195
Black Alligator Strap with Light Red Edging€149
Vintage Alligator Strap Cognac€195
Black Crocodile Military Strap with Blue Stitching€138
Hammered Pink Strap with Ecru Stitching€98
The Submariner 16618 Blue Superluminova, seen from the bench
Frequently asked questions
What is the exact lug width of the Rolex Submariner 16618 Blue Superluminova?
The lug width of the Rolex Submariner 16618 Blue Superluminova is precisely 20 millimetres. This measurement represents the distance between the two attachment pins (lugs) positioned on the yellow gold case. A compatible strap must measure exactly 20mm, as undersized (18mm) or oversized (22mm) attachments will not seat correctly within the lugs and may damage the case dial.
Which strap is best suited for the Rolex Submariner 16618 Blue Superluminova?
The most appropriate strap for the 16618 Blue Superluminova is natural alligator in cognac or dark brown tones, paired with a yellow gold deployante clasp. Alligator delivers certified durability (approximately 600 Newtons tensile strength per square millimetre), a patina that develops over time, and aesthetics that complement rather than compete with the precious metal case. Alternatively, European aniline calf (Lombard leather) ensures natural colour evolution and represents a formal solution for evening wear.
How do I change the strap on a Rolex Submariner 16618?
Strap replacement on the Submariner 16618 requires specialised tools (typically a spring bar removal tool, supplied by Rolex or available through authorised jewellers) and careful handling to prevent damage to the caseback or case flanks. Professional installation through a certified watchmaker or Casati Milano is strongly advised; our service includes 18-month production warranty and full documentation of the work performed.
Can I use an aftermarket-compatible strap on my Submariner 16618 Blue Superluminova?
Yes, with careful selection. A 20mm aftermarket strap can be installed on the 16618 Blue Superluminova provided it meets material specifications (premium leather, alligator, certified aniline calf) and has been crafted by an experienced artisan. Avoid generic synthetic or cotton straps; they compromise the model's integrity. Casati Milano manufactures bespoke leather straps for your Submariner, guaranteeing both aesthetic and functional compatibility.
How long does a leather strap last on a Rolex Submariner?
Leather strap longevity depends on material quality and usage patterns. A premium-grade natural alligator strap typically endures 4-6 years of average daily wear before replacement; European aniline calf achieves 3-5 years under standard conditions. Frequent exposure to water, chlorine, and ultraviolet radiation accelerates degradation. A Casati Milano strap in premium leather, with regular maintenance, can last 7-8 years, with lifespan extended through professional restoration.
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

