Glashütte Original · Senator

Strap for Senator Chronograph Panorama Date Stainless Steel / Silver / Rubber / 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
Reference1-37-01-05-02-53
FamilySenator
MovementGlashütte Original caliber 37-01 Hours, Minutes, Small Seconds | Big Date | Chronograph, Column wheel, Flyback | Power Reserve Indicator
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 1-37-01-05-02-53

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-37-01-05-02-53, seen from the bench

The Glashütte Original Senator features the in-house Calibre 37-01 with flyback chronograph function, big date and power reserve indication. The movement offers hour, minute, small seconds and chronograph with flyback mechanism. The case has 21mm lugs for the strap.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 1-37-01-05-02-53?

The lug width of the Senator 1-37-01-05-02-53 is 21mm. This measurement refers to the internal distance between the two lugs (anse) of the case, and is the critical parameter for strap compatibility. To measure the lug width accurately, use a digital calliper and measure the distance between the internal lug pins.

Which strap is most suitable for the Glashütte Original Senator?

For the Senator 1-37-01-05-02-53, we recommend foremost an alligator strap in brown or black, which accentuates the satin case finish and elegance of the movement. Alternatively, vegetable-tanned calf leather in cognac or hazelnut tones develops natural patina and evolves authentically over time. For daily sporty use, a cotton NATO in navy blue or a grey pearl FKM rubber strap offers practicality without aesthetic compromise.

How do I change the strap on the Senator?

Strap changes are executed via extraction of the lug pins. Position the watch on a soft pad, locate the extraction hole on the lower side of the lug, and use a dedicated pin remover tool to gently push the pin outward. Once both pins are extracted, the old strap slides away; the new strap is installed by reversing the procedure. Ensure both pins are fully seated and the strap sits perfectly within the lug slots.

Can I fit an aftermarket strap on this model?

Yes, any aftermarket strap designed for 21mm lug width is compatible with the Senator. Verify the strap is specifically sized for this width: 20mm or 22mm straps will not seat correctly, creating unwanted lateral gaps or excessive binding force. Artisanal leather straps explicitly engineered for Glashütte Senator compatibility ensure perfect alignment with the pin-lug system.

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

Lifespan depends on material, tanning method, and usage patterns. A quality alligator strap with vegetable tanning endures 3–5 years of daily wear; shell cordovan, more robust still, reaches 5–7 years. Vegetable-tanned calf leather, though softer, yields 2–4 years of regular use. Critical factors include sun exposure (causes fading), humidity (weakens fibres), and chlorine exposure. Preventive maintenance with dedicated leather conditioners significantly extends strap 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