Glashütte Original · Senator

Strap for Senator Chronograph XL

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter44 mm
Reference1-39-34-20-42-04
FamilySenator
MovementGlashütte Original caliber 39-34 hours, minutes, seconds | Chronograph
Year2009
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Senator 1-39-34-20-42-04

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Senator 1-39-34-20-42-04, seen from the bench

The Glashütte Original Senator Chronograph 1-39-34-20-42-04 is a 44mm stainless steel chronograph featuring the in-house caliber 39-34 visible through the caseback. This model combines 170 years of Saxon watchmaking tradition with a restrained design philosophy. The 20mm lug width accommodates a wide range of strap styles, from leather to rubber or fabric, allowing both formal and sporty interpretations while maintaining the watch's proportioned elegance.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 1-39-34-20-42-04?

The lug width of the Glashütte Original Senator 1-39-34-20-42-04 is 20mm. This measurement indicates the external distance between the two lugs on the case and determines compatibility with standard straps. To verify it, measure the available space between one lug and the other at the top of the case.

Which is the best strap for the Glashütte Original Senator 1-39-34-20-42-04?

The best strap depends on intended use. For formal contexts, we recommend alligator with vegetable tanning or vegetable-tanned calf, which develop a rich patina over time. For versatile daily wear, calf with a steel deployante offers seamless transitions between different occasions. For sports and humid environments, a cotton NATO or FKM rubber strap ensures durability and practicality.

How do I change the strap on my Glashütte Original Senator 1-39-34-20-42-04?

To change the strap, you will need a spring bar tool. Insert the flat end of the tool into the lateral slot of the upper lug to compress the internal spring, then extract the pin. Repeat for the lower lug. Insert the new strap by aligning the holes with the pins and press until you feel the spring click.

Can I use an aftermarket strap on my Glashütte Original Senator 1-39-34-20-42-04?

Yes, any strap with a 20mm lug width is compatible with the Glashütte Original Senator 1-39-34-20-42-04. Artisanal aftermarket straps in leather, rubber or fabric are completely suitable. Ensure that the strap has construction quality consistent with the refinement of the watch, choosing premium materials and well-executed finishes.

How long do natural leather straps last on my Glashütte Original Senator?

The lifespan of a natural leather strap varies depending on frequency of use, climatic conditions and leather quality. An alligator or vegetable-tanned calf, if worn regularly and subjected to minimal maintenance (occasional cleaning), typically lasts 3-5 years. Nobler leathers and those less subjected to mechanical stress can exceed 5 years. Exposure to extreme heat and humidity reduces durability.

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.

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