Glashütte Original · Senator

Strap for Senator Observer Stainless Steel / Grey / Alligator / Folding

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter44 mm
Reference100-14-02-02-50
FamilySenator
MovementGlashütte Original caliber 100-14 hours, minutes, small seconds | big date | alarm | power reserve indicator
Year2012
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 100-14-02-02-50

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 100-14-02-02-50, seen from the bench

The Glashütte Original Senator 100-14-02-02-50 is a 44mm stainless steel watch featuring the in-house caliber 100-14 automatic movement with anchor escapement, eccentric rotor, and Glashütte hairspring. It includes a large date display, power reserve indicator, and alarm function. The watch requires a 21mm lug width strap and embodies two centuries of Saxon watchmaking tradition with meticulous finishing and chronometric precision certification.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 100-14-02-02-50?

The lug width of the Glashütte Original Senator 100-14-02-02-50 is 21 millimetres. This measurement is the standard for the Senator collection and reflects the proportional construction of the case. To measure the lugs accurately, position a calliper or measuring tape perpendicularly across the lug width, taking the internal distance between the two connection shoulders. Precision in this measurement is essential to ensure perfect compatibility with aftermarket straps.

What is the best strap for the Glashütte Original Senator 100-14-02-02-50?

The choice depends on intended use and personal preference. For refined and formal aesthetic, we recommend an alligator strap with vegetable tanning, whose natural grain complements the brushed finish of the stainless steel case elegantly. For daily wear, vegetable-tanned calf develops a captivating patina over time. For sporty contexts, an FKM rubber or natural rubber strap ensures durability without compromise. A cotton NATO strap offers chromatic versatility and ease of changing.

How do I change the strap on the Glashütte Original Senator 100-14-02-02-50?

The Senator 100-14-02-02-50 is fitted with spring bar lugs. To remove the original strap: position the watch horizontally, locate the lug apertures, and use a spring bar tool (a specific implement with two pointed ends) to compress the internal spring of the lugs. Once compressed, gently extract the spring bar. Repeat for both lugs. To fit the new strap, insert the spring bars into the appropriate housings and allow the springs to click into position, verifying the absence of any anomalous movement.

Which aftermarket strap is compatible with the Glashütte Original Senator 100-14-02-02-50?

Any strap with a 21-millimetre lug width is compatible with the 100-14-02-02-50. This measurement permits a broad range of choices: alligator, vegetable-tanned calf, shell cordovan, rubber, synthetic elastomer, NATO textiles and others. The only constraint is lug width; material type, coloration and thickness remain discretionary according to the owner's aesthetic and functional preferences.

How long does a leather strap last on the Glashütte Original Senator 100-14-02-02-50?

The longevity of a leather strap depends on the material, tanning method, frequency of use and maintenance standard. An alligator or vegetable-tanned calf strap, worn daily, has an average lifespan of three to five years, with potential to extend further through regular maintenance (periodic cleaning, storage in dry environments). More robust leathers, such as shell cordovan, can exceed seven years. Factors including exposure to moisture, perspiration and solar radiation accelerate deterioration. Periodic strap replacement constitutes a natural aspect of maintaining an excellence timepiece.

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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Casati Milano · Via XX Settembre 15, Milan · by appointment only