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Glashütte Original · Senator

Strap for Senator Panorama Date Moon Phase 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 width

20mm
20 mm strapsAll Glashütte Original
Lug width20 mm
Case diameter40 mm
Reference100-04-32-15-01
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

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Straps for the Senator 100-04-32-15-01

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Senator 100-04-32-15-01, seen from the bench

The Glashütte Original Senator features the in-house caliber 100-04 with hour, minute, second, big date and moon phase indications. The mechanical movement is characterized by the typical large date of the German manufacture and the moon phase complication. The reference 100-04-32-15-01 maintains the classic proportions of the Senator collection with finishing according to the standards of Glashütte watchmaking.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 100-04-32-15-01?

The lug width of the Glashütte Original Senator 100-04-32-15-01 is 20mm. This measurement is specific to this generation of the Senator and ensures visual proportions balanced with the 40mm case diameter. To verify, measure the internal space between the two lugs with a digital calliper: the value will consistently be 20mm.

What is the best strap for the Glashütte Original Senator 100-04-32-15-01?

The ideal strap depends on intended use and aesthetic preference. For aristocratic elegance, we recommend dark brown alligator or shell cordovan in vegetable tanning, which harmonise naturally with red gold. For versatility, grey or taupe calfskin offers geometric simplicity. For contemporary contrast, navy or forest green NATO straps create refined opposition. For modern practicality, black FKM rubber guarantees durability and minimal maintenance.

How do I change the strap on my Glashütte Original Senator?

Changing the strap on the 100-04-32-15-01 requires a spring bar tool. Remove the old strap by gently levering the elastic pins at the ends with the tool, without forcing the crystal. Insert the new pins into the 20mm aftermarket strap, align with the lugs, then press the pin into the hole until you hear a click. Verify the strap is secure by pulling gently. If uncertain, consult an authorised service centre.

Can I use aftermarket 20mm straps on my 100-04-32-15-01?

Yes, all aftermarket straps with 20mm lug width are mechanically compatible with the Glashütte Original Senator 100-04-32-15-01. Verify that the pins can support the weight of the red gold case (approximately 150g). We recommend leather straps with 3-4mm thickness and reinforced construction for stability. Avoid straps with fragile or uncertified pins.

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

A quality artisanal leather strap (alligator, calfskin, shell cordovan) has an average lifespan of 2-4 years with daily use and proper care. Longevity depends on tanning method: vegetable tanning ages more gracefully than chrome tanning, developing natural patina. Protect the leather from excessive moisture, clean periodically with a soft cloth, and apply nourishing cream every 4-6 months to significantly 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