Glashütte Original · Senator

Strap for Senator Perpetual Calendar Stainless Steel / Grey / Bracelet

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
Reference1-36-12-03-02-71
FamilySenator
MovementGlashütte Original caliber 36-12 Hours, Minutes, Small Seconds | Big Date, Day, Leap Year, Month
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 1-36-12-03-02-71

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-36-12-03-02-71, seen from the bench

The Glashütte Original Senator features the manufacture caliber 36-12 with functions of hours, minutes, small seconds, big date, day, month, and leap year. The watch has 21mm lugs and offers a complete calendar with leap year indication. The automatic movement integrates the calendar complications in a traditional layout with a three-hand dial.

Frequently asked questions

What is the exact lug width of the Glashütte Original Senator 1-36-12-03-02-71?

The Glashütte Original Senator 1-36-12-03-02-71 features a 21mm lug width. This measurement, taken between the two case lugs, is essential for selecting a compatible strap. We recommend using a digital calliper or ruler positioned perpendicularly to the lugs to ensure maximum accuracy.

Which strap is recommended for the Glashütte Original Senator 1-36-12-03-02-71?

For this 42mm timepiece, we recommend a strap in alligator or Italian vegetable-tanned calf leather. Alligator in dark brown or cognac tones creates an elegant contrast with the stainless steel case, whilst calf offers superior tactile softness. For versatile daily use, a NATO strap in Cordura fabric maintains formal elegance whilst adding practicality.

How do you change the strap on a Glashütte Original Senator 1-36-12-03-02-71?

Strap replacement requires a quality spring bar tool, ideally with a rounded tip to avoid case damage. Position the tool beneath the lug and apply gentle upward pressure to release the spring bar. Remove the worn strap and insert the new one, ensuring the spring bar clicks into place. We recommend performing this operation on a soft surface to prevent accidental scratches.

Is an aftermarket strap compatible with the Glashütte Original Senator 1-36-12-03-02-71?

Yes, any strap manufactured to 21mm lug width specifications is compatible with the Senator 1-36-12-03-02-71. It is essential to verify that the strap is constructed from quality materials (alligator, vegetable-tanned calf, shell cordovan) and features stainless steel spring bars. Atelier Casati Milano offers bespoke handcrafted straps, customisable online to your watch's exact specifications.

What is the average lifespan of a leather strap on the Glashütte Original Senator 1-36-12-03-02-71?

A quality leather strap, made with vegetable tanning, typically lasts 3-5 years with moderate daily use. This lifespan increases significantly with proper maintenance: condition the leather every six months with natural oils, avoid prolonged exposure to excessive moisture and extreme temperatures, and rotate regularly between multiple straps to distribute wear. Shell cordovan, due to its structural density, may last 5-7 years. Synthetic material straps (FKM rubber) generally last 7-10+ years.

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