Glashütte Original · Senator

Strap for Senator Excellence Perpetual Calendar Stainless Steel / 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
Reference1-36-02-01-02-01
FamilySenator
MovementGlashütte Original caliber 36-02 hours, minutes, seconds | big date, day, leap year, month, perpetual calendar | moonphase
Year2017
CaseStainless Steel

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 1-36-02-01-02-01

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-36-02-01-02-01, seen from the bench

The Senator Perpetual Calendar features the Glashütte Original manufacture caliber 36-02 with perpetual calendar, big date, day, month, leap year indication, and moon phases. The movement offers hours, minutes, central seconds, and calendar complications. The case has 21mm lugs for the strap.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 1-36-02-01-02-01?

The lug width of the Glashütte Original Senator 1-36-02-01-02-01 is 21mm. This measurement represents the distance between the two lugs of the case and is essential to ensure the correct fit of any replacement strap. The measurement must be taken with a digital calliper, from the innermost point of one lug to the innermost point of the other, without applying pressure to the spring bars.

What is the best strap for the Glashütte Original Senator 1-36-02-01-02-01?

The best strap depends on intended use and aesthetic preferences. For formal occasions, we recommend alligator in black or burgundy, or shell cordovan in dark brown, both with artisanal finishes. Vegetable-tanned calf leather offers a more sustainable and austere alternative. For light sporting contexts, a NATO strap in military-grade nylon in charcoal grey or navy blue maintains the elegance of the watch without excess.

How do you change the strap on a Glashütte Original Senator?

To change the strap, you need a spring bar removal tool. Position the watch on a stable surface, insert the small hook of the tool under the spring bar from one side, apply gentle downward pressure and simultaneously extract the strap from the case. Repeat on the other side. Insert the new strap by aligning the lug width with the spring bars until you hear an audible click of attachment.

Which aftermarket straps are compatible with the Glashütte Original Senator 1-36-02-01-02-01?

Any strap equipped with a 21mm lug width is compatible with the Senator 1-36-02-01-02-01. Milano Straps offers a specific collection of 21mm straps in alligator, shell cordovan, vegetable-tanned calf, NATO and rubber, all handcrafted and tested to guarantee impeccable fit. The selection includes classic colours and finishes that enhance the elegance of the steel case.

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

The lifespan of a leather strap depends on the material, frequency of wear and maintenance. A quality artisanal alligator or shell cordovan, worn daily with care, can last 3-5 years before requiring replacement. Vegetable-tanned calf leather tends to age more rapidly, developing visible patina within 1-2 years. Longevity increases if the strap is protected from excessive moisture and exposed to sunlight in a controlled manner. Minimal maintenance—gentle brushing and conditioning every 6-12 months—significantly extends the strap's 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