Glashütte Original · Senator

Strap for Senator Panorama Date Red Gold / Silver / Alligator / Folding

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

Lug width20 mm
Case diameter40 mm
Reference100-03-32-45-50
FamilySenator
MovementGlashütte Original caliber 100-03 Hours, Minutes, Seconds | Big Date | Alarm
CaseRed Gold

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 100-03-32-45-50

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Senator 100-03-32-45-50, seen from the bench

The Glashütte Original Senator 100-03-32-45-50 is a red gold timepiece with a 40mm case and 20mm lug width. It features the automatic Glashütte Original 100-03 caliber with hours, minutes, seconds, date window, and alarm function. The case, 12.6mm thick, offers 30 meters water resistance. The silver dial displays a textured finish characteristic of Glashütte manufacture.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 100-03-32-45-50?

The lug width is 20mm. This dimension is essential for selecting compatible straps. Measuring it precisely allows you to verify the exact point where the lugs connect to the case, ensuring a secure mechanical fit without play.

Which strap is recommended for the Senator 100-03-32-45-50?

For this 40mm red gold case, straps in alligator leather or vegetable-tanned calf are ideal, as they enhance the tactile perception of red gold. Alternatively, linen or rubber NATO straps absorb moisture and allow seasonal rotation without aesthetic compromise.

How do I change the strap on this watch?

Changing the strap requires a specific tool to extract the suspension pins from the lugs. For models with a deployant buckle, simply open the clasp and slide the strap from the slots. We recommend having the strap changed at an authorised service centre to prevent damage to the red gold lugs.

Can I use an aftermarket strap on the Glashütte Original Senator 100-03-32-45-50?

Yes, provided the strap has a 20mm lug width. Milano Straps offers artisan straps in leather, NATO, and rubber specifically engineered for this dimension. The quality of materials and precision of construction ensure compatibility and durability.

How long does a leather strap last on this watch?

A high-quality leather strap, vegetable-tanned, maintains structural integrity for 3–5 years with ordinary maintenance. Frequency of use, humidity exposure, and tanning method influence longevity. Milano Straps recommends seasonal rotation to extend strap life.

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