Glashütte Original · Senator
Strap for Senator Chronograph Panorama Date Stainless Steel / Black / Bracelet
Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Senator 1-37-01-03-02-70
Selected for the 21 mm lug width · workshop selection
Vintage Black Calfskin Leather Strap€80
Saffiano Black Strap Tone Stitching€90
Vintage Brown Calfskin Strap — Natural Patina€98
Red Alligator Strap Water Resistant€195
The Senator 1-37-01-03-02-70, seen from the bench
Frequently asked questions
What is the lug width of the Glashütte Original Senator 1-37-01-03-02-70?
The <a href="https://milanostraps.it/pages/termine-glossario/misura-ansa">lug width</a> of the Senator 1-37-01-03-02-70 is 21mm. This is a non-standard dimension, specifically engineered for the 42mm case. A 21mm width ensures proportionate lugs without visual excess relative to the case diameter.
Which strap material pairs best with the Glashütte Original Senator 1-37-01-03-02-70?
For the Senator 1-37-01-03-02-70, we recommend <a href="https://milanostraps.it/pages/termine-glossario/alligatore">alligator</a> or premium calf leather with <a href="https://milanostraps.it/pages/termine-glossario/concia-vegetale">vegetable tanning</a>. These materials reflect the watch's constructive sobriety and develop natural patina over time. Alternatively, a technical NATO strap offers daily versatility without compromising the formal steel case aesthetic.
How do you change a strap on a watch with 21mm lugs?
Changing a strap on a 21mm <a href="https://milanostraps.it/pages/termine-glossario/misura-ansa">lug width</a> requires a spring bar tool. Position the watch on a stable surface, insert the tool tip into the lug hole, gently compress the internal spring, and slide out the pin. Repeat on the other side. Insert the new strap by aligning the axes and verify the pin is fully seated on both sides. For the Senator, precise handling is recommended—the case deserves artisanal attention.
Are there compatible aftermarket straps for the Glashütte Original Senator 1-37-01-03-02-70?
Yes, numerous artisanal aftermarket straps in 21mm <a href="https://milanostraps.it/pages/termine-glossario/misura-ansa">lug width</a> are compatible with the Senator 1-37-01-03-02-70. MilanoStraps offers straps in leather, alligator, shell cordovan, and technical fabrics, all available in 21mm format. It is possible to customise finishes, colours, and <a href="https://milanostraps.it/pages/termine-glossario/deployante">deployante</a> clasps to personal preference. We recommend verifying final strap thickness: the Senator tolerates straps up to 3.5-4mm without altering aesthetics.
What is the average lifespan of a leather strap for the Glashütte Original Senator 1-37-01-03-02-70?
A quality leather strap with vegetable tanning typically lasts 3-5 years with daily use. Lifespan depends on frequency of use, climatic conditions, and maintenance. A <a href="https://milanostraps.it/pages/termine-glossario/shell-cordovan">shell cordovan</a> strap can extend to 7-10 years. Thick leather (1.6-2mm gauge) resists lug wear better. MilanoStraps offers replacement and regeneration services to extend the life of your original strap.
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