Glashütte Original · Senator

Strap for Senator Manual Winding Red Gold / Skeleton / 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
Reference1-49-18-01-05-01
FamilySenator
MovementGlashütte Original caliber 49-18 hours, minutes | skeleton
Year2015
CaseRed 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 1-49-18-01-05-01

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Senator 1-49-18-01-05-01, seen from the bench

The Glashütte Original Senator 1-49-18-01-05-01 is a 42mm red gold manual winding watch representing contemporary evolution of an icon established in 1845 at the German manufactory. Powered by the in-house calibre Glashütte Original 49-18 with visible skeletonized caseback, the movement delivers 43,200 vibrations per hour. The red gold case—75% pure gold with copper—develops a warm patina over time. Lug width is 21mm. Alligator leather strap with pin buckle is recommended.

Frequently asked questions

What is the lug width of the Glashütte Original Senator 1-49-18-01-05-01?

The lug width of the Glashütte Original Senator 1-49-18-01-05-01 is 21mm. This measurement is specific to this model and represents the equilibrium between the 42mm case mass and overall visual harmony. To verify correctly, remove the strap and measure the internal distance between the two spring bars. An undersized strap will create irregular pressure; an oversized strap will introduce mechanical play.

Which strap is most appropriate for the Glashütte Original Senator in red gold?

For the red gold Senator, an alligator strap in dark brown or black represents the choice of maximum elegance, as it creates chromatic contrast whilst enhancing the warmth of the gold. The structured grain of alligator dialogues with the skeleton movement's lines. Alternatively, calf leather with vegetable tanning in tobacco tone develops a warm patina mirroring the natural ageing of gold. For sporting versatility, a NATO or FKM rubber strap offers practical comfort whilst maintaining aesthetic legibility.

How do you change the strap on the Glashütte Original Senator 1-49-18-01-05-01?

To change the strap, use a spring bar tool (specialist implement for safety pins). Insert the thin end beneath the pin from inside outward, releasing spring tension. Extract the pin from the case lug hole, then remove the old strap. Insert the new strap into the case lugs and reinstate the pin, verifying it clicks fully into position. Repeat on the second side. Avoid improvised tools that might scratch the red gold case.

Which aftermarket straps are compatible with the 21mm lug width of the Senator?

All straps with 21mm lug width are compatible, including full-grain leather straps with vegetable tanning, NATO straps in cotton jacquard, FKM (fluorocarbon) rubber elastics and alligator. Always verify that the strap lug width is 21mm and that the spring bars enter the case holes without forcing. Atelier Casati Milano and milanostraps.it offer curated selections of 21mm-compatible straps, customisable to specification.

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

Leather strap lifespan depends on tanning method and maintenance. An alligator or calf with vegetable tanning, if handled carefully (reduced direct moisture exposure, cleaning with soft cloth), develops pleasing patina and lasts 4-6 years of daily wear. Vegetable tanning tends to darken and acquire character over time, transforming the strap into a tactile memory of the relationship with the watch. An FKM rubber strap lasts longer (8-10 years), whilst a cotton NATO resists 5-7 years before requiring replacement due to fibre wear.

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