Strap for Senator Perpetual Calendar Red Gold / Black / Rubber / Folding

The lug width of the Glashütte Original Senator 100-02-25-05-53 is 18mm. This measurement represents the internal distance between the two case lugs and determines strap compatibility. To verify it accurately, use a digital calliper measuring on the inner face of the lug, from the edge of one shoulder to the other.

The best strap for the Senator in rose gold is alligator leather tanned vegetably in shades of dark brown or chestnut. This material creates an elegant chromatic contrast with the warmth of rose gold without competing aesthetically. Alternatively, high-grade calf leather in black offers absolute formality, whilst a grey-beige textile NATO guarantees daily versatility whilst maintaining the constructive dignity of the watch.

To change the Senator's strap, you must remove the spring bars that connect the lugs to the case. Equip yourself with a spring bar tool (specific instrument with dual termination) and insert the appropriate tip into the lug hole from the internal side. Press the bar and extract the used strap. Next, position the new strap on the lug, align the spring bar and ensure both shoulders are correctly positioned before applying pressure.

Yes, it is possible to use high-quality aftermarket straps with 18mm lug width. Milano Straps offers a complete selection of leather, NATO and rubber straps specifically compatible with this lug size. The important thing is to ensure that the strap is made of elevated quality materials (full grain leather, robust textiles, solid buckles) so as to honour the constructive value of the watch.

The lifespan of a leather strap depends on material quality and intensity of use. A high-grade alligator or calf strap, with vegetable tanning, maintains structural integrity for 3–5 years of daily use. The leather patinas naturally and develops characteristic colouration. With periodic maintenance (gentle cleaning, occasional conditioning) it is possible to extend durability. A shell cordovan strap, thanks to its density, can last even longer maintaining a youthful appearance for 7–10 years.