Glashütte Original · Senator

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

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
Reference100-03-32-45-01
FamilySenator
MovementGlashütte Original caliber 100-03 hours, minutes, seconds | big date | alarm
Year2013
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 100-03-32-45-01

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Senator 100-03-32-45-01, seen from the bench

The Glashütte Original Senator features the in-house caliber 100-03 with functions of hours, minutes, seconds, big date and alarm. The movement presents the characteristic big date typical of the German brand. The watch belongs to the Senator collection, the elegant line of the Glashütte manufacture.

Frequently asked questions

What is the exact lug width of the Glashütte Original Senator 100-03-32-45-01?

The lug width of the Glashütte Original Senator 100-03-32-45-01 is 20 millimetres. This measurement is standard for the model and is compatible with the vast majority of artisanal watch straps available on the market. The measurement should be verified using a digital calliper positioned perpendicularly to the lugs, starting from the point where they emerge from the case.

Which type of strap is recommended for the Senator 100-03-32-45-01 in red gold?

For the Senator 100-03-32-45-01 in red gold, straps in premium French alligator (fine grain, cognac or dark brown tones) are the natural choice. Alternatively, vegetable-tanned calf leather develops a patina over time that harmonises with the natural ageing of red gold. Medium brown calf with contrasting beige stitching allows appreciation of craftsmanship without distracting from the watch. For formal-casual versatility, a NATO in cotton canvas in dark brown with gold/beige side stripes maintains elegance.

How do you correctly change the strap on a Glashütte Original Senator 100-03-32-45-01?

To change the strap on the Senator 100-03-32-45-01: (1) position the watch on a soft surface; (2) use a spring bar tool to gently compress the lug spring; (3) extract the lug bar from the case hole, working one side at a time; (4) insert the bar into the new strap following the reverse sequence. Never use screwdrivers or unsuitable tools, which risk scratching the red gold case.

Is it possible to use an aftermarket strap on a Glashütte Original Senator 100-03-32-45-01?

Yes, it is completely possible and recommended. The Senator 100-03-32-45-01 is fitted with standard 20 millimetre lugs, compatible with the vast range of artisanal straps available. Many collectors appreciate the ability to alternate straps according to context (alligator for formal, NATO for casual, rubber for humid environments). The use of quality aftermarket straps does not compromise any aspect of the watch's warranty or functionality.

How long does a leather strap typically last on a Glashütte Original Senator?

A quality artisanal leather strap (alligator, vegetable-tanned calf, shell cordovan) on a wristwatch worn daily lasts on average 3-5 years. Longevity depends on: frequency of wear, exposure to moisture and perspiration, tanning quality, care and maintenance. A vegetable-tanned calf strap can extend to 7-8 years if treated with leather wax every 6-12 months. Shell cordovan, if kept in a dry, cool environment, can last over 10 years. NATO fabric straps last 4-6 years before showing structural wear.

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