Glashütte Original · Senator

Strap for Senator Chronometer White Gold / Silver / Alligator / Pin

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

Lug width21 mm
Case diameter42 mm
Reference1-58-01-01-04-01
FamilySenator
MovementGlashütte Original caliber 58-01 hours, minutes, small seconds, day / Night Indication | big date | power reserve indicator
Year2009
CaseWhite 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 1-58-01-01-04-01

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-58-01-01-04-01, seen from the bench

The Glashütte Original Senator features the in-house caliber 58-01 with hour, minute, small second and big date indications. The watch also features a day/night indicator and a power reserve indicator. The case is equipped with 21mm lugs.

Frequently asked questions

What is the exact lug width of the Glashütte Original Senator 1-58-01-01-04-01?

The lug width of the Senator 1-58-01-01-04-01 is precisely 21 millimetres. This dimension is specific to the 42mm white gold model and is determined by the case geometry itself. To verify it accurately, measure the internal space between the pins that secure the strap to the case using a digital calliper, or consult the Glashütte technical documentation provided with your watch.

What is the best strap material for the 42mm Senator in white gold?

Alligator leather with vegetable tanning remains the ideal choice: the granular texture and natural patina of ageing enhance the nobility of white gold without competing with case geometry. Shell cordovan offers fascinating colour depth and developing lustre over time. Quality calf leather represents the minimalist option for lighter dials. Avoid saturated colours in NATO; if you prefer canvas, select neutral tones such as grey, black, or dark blue.

How do I change the strap on the Glashütte Original Senator 1-58-01-01-04-01?

The Senator employs standard lugs with removable spring bar pins. Obtain a spring bar tool or visit a qualified watchmaker. Position the watch with the lug space facing you, insert the tool tip into the lateral hole of the lug to compress the internal spring, remove the old pin, insert the new strap, and repeat on the opposite side. An integrated deployant clasp on the case simplifies the operation further.

Can I use an aftermarket 21mm strap on this watch?

Yes, any strap with 21mm lug width is compatible with the Senator 1-58-01-01-04-01. Artisanal milanostraps are manufactured to standards equivalent to watchmaking, featuring selected leather, precise stitching, and stainless steel or precious metal pins. Always verify that the aftermarket strap's external width is compatible with case aesthetics (typically 23–24mm maximum for the Senator).

What is the average lifespan of a leather strap on this watch?

A quality leather strap (alligator, calf, cordovan) with vegetable tanning typically lasts 2–4 years in daily use, depending on climate, humidity, and frequency of wear. Natural leather ages and patinas—desirable characteristics—whilst stitching and pins require periodic inspection. A NATO canvas strap lasts longer (4–6 years), as does natural rubber (3–5 years). Retain the original Glashütte strap and consider seasonal rotation to extend lifespan.

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