Glashütte Original · Senator

Strap for Senator Excellence Perpetual Calendar White Gold / Black-Skeleton/ Alligator / Folding

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
Reference1-36-02-03-04-50
FamilySenator
MovementGlashütte Original caliber 36-02 hours, minutes, seconds | big date, day, leap year, month, perpetual calendar | moonphase
Year2018
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 1-36-02-03-04-50

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-36-02-03-04-50, seen from the bench

The Glashütte Original Senator Excellence Perpetual Calendar (ref. 1-36-02-03-04-50) is a 42 mm white gold timepiece featuring the manual-wind caliber 36-02, a complex movement with perpetual calendar, day, month, leap year, moonphase, and large date. The watch has a 21 mm lug width and displays the characteristic Glashütte decoration visible through the sapphire caseback. The white gold case ensures superior durability and cold luminosity that complements the silvered dial displaying all perpetual calendar functions in geometric precision.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 1-36-02-03-04-50?

The lug width of the Glashütte Original Senator 1-36-02-03-04-50 is 21 mm. This measurement refers to the distance between the two lug pins on the case, and is essential for purchasing compatible straps. You can measure this directly on the case by noting the spacing of the parallel pins both at the top and bottom. The lug depth is approximately 10-11 mm, which influences compatibility with certain straps and deployant clasps.

What strap is recommended for the Senator in white gold?

For a Glashütte Original Senator 1-36-02-03-04-50 in white gold, we recommend straps in vegetable-tanned alligator (dark brown, black, or cognac), vegetable-tanned calf, shell cordovan, or cotton jacquard NATO. Dark brown alligator with a developed patina is the most conservative and refined choice, whilst shell cordovan in cognac creates an interesting specular effect with white gold. For informal daily wear, navy NATO offers versatility without aesthetic compromise. Avoid synthetic straps and low-grade rubber, which would not respect the construction quality of the case.

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

To change the strap on the Senator 1-36-02-03-04-50, you will need a spring bar tool. Locate the two parallel lug pins on the case, one at the top and one at the bottom. Insert the spring bar tool into the small access hole on the pin lever, gently pushing downward to free the pin from the old strap. Repeat for the second pin. Insert the pins of the new strap into the corresponding housings on the case, ensuring they are correctly positioned. If you have a strap with a deployant clasp, verify that the lug depth is compatible with the 10-11 mm of your case.

Which aftermarket straps are compatible with the Glashütte Original Senator 1-36-02-03-04-50?

All straps with a 21 mm lug width are compatible with the Senator 1-36-02-03-04-50. On milanostraps.it you will find a specialised selection of artisanal straps in this size, constructed to elevated quality standards. Recommended materials include vegetable-tanned alligator, vegetable-tanned calf, shell cordovan, deer leather, and NATO fabrics. All of our 21 mm straps are designed to fit perfectly with the proportions of the Senator case, respecting the 10-11 mm lug depth.

What is the average lifespan of a leather strap for the Senator?

The lifespan of a leather strap depends on the material and intensity of use. High-quality vegetable-tanned alligator can last 5-7 years of daily wear before showing significant signs of deterioration, as vegetable tanning develops a protective patina that strengthens the material over time. Vegetable-tanned calf typically lasts 4-5 years before requiring replacement, as the fibre is more delicate. Shell cordovan, being the densest material, can exceed 8 years of daily use. Lifespan increases significantly if the strap is stored correctly (not exposed to direct sunlight) and rotated regularly with other straps. It is advisable to apply a protective treatment every 12-18 months to extend the life of the strap.

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