Glashütte Original · Senator

Strap for Senator Chronometer Regulator 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
Reference1-58-04-04-04-01
FamilySenator
MovementGlashütte Original caliber 58-04 hours, minutes, small seconds | big date | power reserve indicator
Year2013
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 1-58-04-04-04-01

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

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

The Glashütte Original Senator model 1-58-04-04-04-01 embodies the manufacture's construction philosophy: precision, balanced proportions, and technology serving aesthetics. The 42mm white gold case combines austere lines with a clean dial, featuring the manual-wind caliber 58-04 movement with hours, minutes, small seconds, date, and power reserve indicator. The 21mm lug width is a deliberate choice reflecting the case proportions and period design, rarely found in contemporary catalogs dominated by 20mm and 22mm standards.

Frequently asked questions

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

The lug width of the Glashütte Original Senator 1-58-04-04-04-01 is 21 millimetres. This measurement should be taken internally between the two lugs of the case. It is essential to verify this dimension before ordering an aftermarket strap, as 21mm is a specific size requiring experienced artisans for proper execution.

Which type of strap is most suitable for the Glashütte Original Senator 1-58-04-04-04-01?

For this white gold model we recommend an alligator strap (dorsal spine) for formal daily wear, vegetable-tanned calf if you desire a leather that develops patina over time, or shell cordovan for those who appreciate noble leathers with high durability. The choice depends on usage: formal occasions require alligator or calf, whilst a grey NATO offers versatility for mixed contexts.

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

Strap replacement involves removing the spring bars that connect the strap to the case. Using a dedicated tool (spring bar tool) is essential to avoid damage. The bars must be pushed inward to release the old strap, then reinserted into the new one. If you feel uncertain, entrust this task to an experienced watchmaker or our specialised assistance.

Are there aftermarket straps compatible with this 21mm lug width?

Yes, although 21mm is a less common size than 20mm or 22mm. Milano Straps manufactures bespoke artisanal straps specifically for this lug width. Experienced craftsmen can create straps in alligator, calf, shell cordovan and fabric with exactly 21mm lugs, ensuring perfect compatibility and superior build quality.

What is the average lifespan of a leather strap for my watch?

The lifespan of a leather strap depends on the material and intensity of use. A high-quality vegetable-tanned calf lasts 3-5 years with daily wear; alligator, being more resilient, often exceeds 5 years. Shell cordovan can last 7-10 years. A NATO in enduit fabric resists 5-8 years. Factors such as humidity, sun exposure and frequency of wear influence longevity. Artisanal straps tend to last longer thanks to superior construction quality.

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