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Glashütte Original · Senator

Strap for Senator Cosmopolite Stainless Steel / Silver-Arabic / Synthetic

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

21mm
21 mm strapsAll Glashütte Original
Lug width21 mm
Case diameter44 mm
Reference1-89-02-03-02-36
FamilySenator
MovementGlashütte Original caliber 89-02 hours, minutes, small seconds, world time, day / Night Indication, Additional 12 hours Hand (adjustable) | big date, day | power reserve indicator
Year2021
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

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Straps for the Senator 1-89-02-03-02-36

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-89-02-03-02-36, seen from the bench

The Glashütte Original Senator 1-89-02-03-02-36 features the in-house caliber 89-02 movement with 72-hour power reserve and anchor escapement. The polished stainless steel case measures 44 mm in diameter with a 21 mm lug width. This model combines world time, day/night indicator, 12-hour function, visible power reserve, and big date complication, balancing formal elegance with practical versatility.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 1-89-02-03-02-36?

The <a href="/pages/termine-glossario/misura-ansa">lug width</a> of the Senator 1-89-02-03-02-36 is 21mm. This dimension is specific to this model and requires custom-made straps. The 21mm width ensures visual proportion with the 44mm case and aligns correctly with the watch lugs, avoiding unwanted overlaps.

Which strap is most suitable for the Glashütte Original Senator 1-89-02-03-02-36?

For the Senator, we recommend a <a href="/pages/termine-glossario/alligatore">alligator</a> or vegetable-tanned calf leather strap for formal occasions, fitted with a steel <a href="/pages/termine-glossario/deployante">deployante</a> clasp to ensure wrist stability. Alternatively, an anthracite-grey canvas nato offers daily versatility while maintaining Saxon elegance. The choice depends on primary use: executive or casual-refined.

How do you change the strap on the Senator 1-89-02-03-02-36?

Strap replacement requires extraction of the spring bars (lugs) using a dedicated spring bar tool. Insert the tool into the lateral hole of the cartridge, push downward until the bar emerges from the opposite end, then remove the previous strap and insert the new one. We recommend performing this operation on a soft surface to avoid scratching the lugs. If in doubt, contact Casati Milano for bespoke assistance.

Which aftermarket straps are compatible with the 1-89-02-03-02-36?

All <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-21mm">21mm straps</a> from milanostraps.it are compatible: full-grain leather, <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a>, alligator, nato, technical rubber. Choosing an artisanal strap allows you to personalise chromatic finishing, shell height and fastening type (steel <a href="/pages/termine-glossario/deployante">deployante</a> or classic buckle).

What is the lifespan of a leather strap for the Senator 1-89-02-03-02-36?

A <a href="/pages/termine-glossario/concia-vegetale">vegetable-tanned</a> leather strap, with moderate use (3-4 days per week), offers a lifespan of 3-5 years. <a href="/pages/termine-glossario/shell-cordovan">Shell cordovan</a>, thanks to fibre density, extends life to 7-10 years. The patina that develops over time represents added aesthetic value. Regular maintenance (cleaning, conditioning balm) significantly prolongs 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