Glashütte Original · Senator

Strap for Senator Panorama Date Moon Phase 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
Reference100-04-32-15-04
FamilySenator
MovementGlashütte Original caliber 100-04 Hours, Minutes, Seconds | Big Date | Moonphase
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 100-04-32-15-04

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Senator 100-04-32-15-04, seen from the bench

The Glashütte Original Senator features the in-house caliber 100-04 with indication of hours, minutes, seconds, big date and moon phases. The watch presents the characteristic big date typical of the German brand and the astronomical complication of the moon phases. The mechanical movement incorporates the traditional finishes and decorations of the Glashütte manufactory.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 100-04-32-15-04?

The Glashütte Original Senator 100-04-32-15-04 features a lug width of 20mm. This dimension is integrated into the case design and is determined by the distance between the lugs of the original bracelet. It is essential to verify this measurement before purchasing a replacement strap to ensure perfect compatibility.

What is the best strap for the Glashütte Original Senator 100-04-32-15-04?

There is no universal choice, but three excellent options depending on usage: alligator with vegetable tanning for maximum formality and evolving patina; shell cordovan for daily durability and tactile density; vegetable-tanned calf for versatility and ageing parallel to the Red Gold case. All these materials respect the formal identity of the Senator in Red Gold.

How do you change the strap on the Glashütte Original Senator 100-04-32-15-04?

The Senator uses integrated lugs in the case, connected via spring bars. To change the strap: remove the spring bars using a dedicated spring bar tool inserted into the lateral holes of the case, slide the bar inward, remove the old strap, position the new 20mm strap under the lugs, reinsert and secure the spring bars. If you lack experience, consulting a professional is recommended.

Is the Glashütte Original Senator 100-04-32-15-04 compatible with quality aftermarket straps?

Yes, perfectly. Any strap with a 20mm lug width is compatible with the Senator 100-04-32-15-04. Quality depends on material and craftsmanship: alligator, shell cordovan, or vegetable-tanned calf straps from specialist suppliers guarantee durability and aesthetic ageing that does not devalue the watch, indeed enhances it.

What is the average lifespan of a leather strap for the Glashütte Original Senator 100-04-32-15-04?

A quality leather strap (alligator, calf, shell cordovan) lasts an average of 3–5 years with daily use, up to 7–10 years with seasonal rotation. Lifespan depends on moisture exposure, frequency of wear, and maintenance. A shell cordovan strap, thanks to superior density, easily reaches 10 years. The patina that develops over time is a desired characteristic, not a defect.

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