Glashütte Original · Senator

Strap for Senator Chronograph Panorama Date Red 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
Reference1-37-01-01-05-01
FamilySenator
MovementGlashütte Original caliber 37-01 hours, minutes, small seconds | big date | Chronograph, column wheel, Flyback | power reserve indicator
Year2014
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 1-37-01-01-05-01

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-37-01-01-05-01, seen from the bench

The Glashütte Original Senator Chronograph 1-37-01-01-05-01 is a 42mm manual-winding chronograph in 18k red gold, featuring the in-house caliber 37-01 with column-wheel mechanism and flyback function. This timepiece combines classical proportions with contemporary mechanics, offering hours, minutes, small seconds, date window, and chronograph complication with visible power reserve. The 21mm lug width accommodates various strap thicknesses while maintaining structural integrity and aesthetic cohesion with the case.

Frequently asked questions

What is the exact lug width of the Glashütte Original Senator 1-37-01-01-05-01?

The lug width of the Glashütte Original Senator 1-37-01-01-05-01 is precisely 21mm. This measurement defines the internal spacing between the lugs and determines strap compatibility. Manual verification is essential: position a ruler between the lugs to ensure accurate measurement, which guarantees a seamless fit without mechanical play.

Which strap material is best suited for a red gold Glashütte Original Senator 42mm?

For a red gold Senator, crocodile alligator in cognac or dark brown is the foremost choice, emphasising the warmth of the gold whilst developing a rich patina over time. Vegetable-tanned calf leather provides daily robustness, whilst intense black ensures understated elegance. For casual wear, silk NATO straps offer versatility whilst maintaining sartorial dignity appropriate to the timepiece.

How do I correctly change the strap on a Glashütte Original Senator 1-37-01-01-05-01?

Use a professional spring bar tool. Position the watch lug-side-up on a soft surface. Insert the tool tip gently into the small hole beneath the lug, compressing the spring bar. Once released, extract the old strap. Align the new 21mm strap with both lugs and press until the spring mechanism clicks securely. Verify the fitment visually from both sides to confirm secure attachment.

Are aftermarket 21mm straps truly compatible with the Glashütte Original Senator?

Yes, professionally manufactured aftermarket straps of 21mm width are fully compatible with the Glashütte Original Senator 1-37-01-01-05-01. Critical is ensuring the strap is tailored to your specific watch case, as manufacturing tolerances on the lugs can vary minutely. Specialist ateliers like Casati Milano measure your watch directly to guarantee impeccable fit.

What is the expected lifespan of a leather strap on a chronograph like the Senator?

Durability depends on leather type and usage frequency. Alligator or vegetable-tanned calf leather, worn moderately (4–5 days weekly), typically lasts 5–8 years. Constant exposure to humidity, perspiration, and UV radiation accelerates degradation. Chronographs, requiring frequent pusher manipulation, subject the strap to repeated microtrauma, marginally shortening lifespan. Regular maintenance with appropriate conditioning creams substantially extends longevity.

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