Rolex · Submariner
Strap for Submariner Date 16613 Blue Tiffany Tritium
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 16613 Blue Tiffany Tritium
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Military Red Alligator Strap with Blue Stitching€183
Black and Red NATO Strap — Military Heritage€183
Black Crocodile Military Strap with Blue Stitching€183
The Submariner 16613 Blue Tiffany Tritium, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Submariner 16613 Blue Tiffany Tritium?
The Rolex Submariner 16613 Blue Tiffany Tritium features a 20-millimetre lug width. This dimension is the standard specification for the Submariner of this generation (16613 references in two-tone variants). Verification of compatibility is essential: measure from inner lug to inner lug, ensuring the value corresponds precisely to 20 millimetres. Undersized straps create mechanical tension; oversized straps do not seal properly at the lugs.
What is the best strap for the Rolex Submariner 16613 Blue Tiffany Tritium?
There is no universal choice—it depends on intended use and personal aesthetic. For formal elegance: dark alligator or Cordovan black, which emphasise the two-tone gold-steel case and Tiffany blue bezel. For refined daily wear: cognac or dark brown vegetable-tanned leather, with patina development over time. For sporting practicality: NATO in cordura or technical rubber with scratch resistance. The 16613 Blue Tiffany Tritium accommodates all these materials excellently because the two-tone case and blue bezel serve as a neutral chromatic anchor.
How do I change the strap on the Rolex Submariner 16613 Blue Tiffany Tritium?
Remove the watch from your wrist. Locate the spring bars in the lugs: these are straight fillets connecting the strap to the case. Obtain a spring bar tool or use any thin-pointed implement. Position the tip in the horizontal recess of the bar, gently press downwards until you feel slight resistance—the bar will yield, allowing the old strap to separate. Repeat on the other lug. Insert the new strap by aligning its holes with the lugs, then reposition the bars using the same tool, pushing the strap towards the case until it clicks into place. Verify stability before wearing.
Are aftermarket straps compatible with the Rolex Submariner 16613 Blue Tiffany Tritium?
Yes, provided they strictly respect the 20-millimetre lug width specification. Any strap with 20mm lugs (regardless of brand, material, or price) installs mechanically onto the 16613 Blue Tiffany Tritium without case modification. Choosing artisanal aftermarket straps from specialised ateliers offers added value: leather selection, aesthetic customisation, warranty on manufacturing defects, and long-term support. There is no risk of structural incompatibility—only qualitative considerations.
How long does a leather strap last on the Rolex Submariner 16613 Blue Tiffany Tritium?
Longevity depends on material, maintenance, and intensity of use. Premium alligator lasts 5–7 years with moderate wear, exceeding 10 years with consistent care (periodic cleaning, leather conditioning). Vegetable-tanned calf reaches 8–12 years in good condition. Cordovan, being pressed horse hair leather, frequently surpasses 10 years. NATO in cordura reaches 5–8 years. To maximise lifespan: avoid prolonged water contact, remove the watch before hand washing, store in a dry environment, apply leather balm 2–3 times yearly. A quality artisanal strap represents an investment with long-term amortisation.
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

