Strap for Senator Perpetual Calendar Bucherer Blue

The Senator 1-36-02-04-02-33 features an 18mm lug width. This measurement must be taken internally between the two lugs of the case. Inaccurate measurement will compromise strap compatibility and mechanical fit at the wrist.

Alligator leather with vegetable tanning, high-quality calf with natural patina, or NATO fabric straps are all ideal choices. Alligator emphasises the formal geometry of the case, calf offers chromatic versatility, whilst NATO ensures durability in less formal environments. All must feature 18mm lug width.

Use a spring bar tool or bone toothpick to remove the strap. Position the tool from inside the lug, compress the spring bar downward and gently pull the strap outwards. Insert the new strap ensuring the spring bar is fully seated. Verify proper fit before wearing the watch.

Yes, the Senator 1-36-02-04-02-33 accepts 18mm aftermarket straps from any manufacturer, provided they feature standard spring bars compatible with the original lugs. Quality certification is recommended to avoid damage to the bars and case. MilanoStraps curates a selection of 18mm straps tested on this model.

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 3–5 years with daily wear, depending on climate, rotation frequency and maintenance. NATO canvas straps last longer (5–7 years), whilst FKM rubber degrades gradually under prolonged sunlight exposure. Proper care (cleaning, drying, strap rotation) significantly extends longevity.