Strap for Big Crown Original Pointer Date 40 Bronze / Blue / Bracelet

The lug width of this model is 20mm. This is the internal distance, measured perpendicular to the watch case plane, between the two lugs. This specification is determined by the geometry of the 40mm case and ensures visual proportionality with the oversized crown. Recommended tolerance: ±0.5mm.

The choice depends on intended use and case material. For the bronze version, we recommend alligator black or vegetable-tanned calf in hazelnut tones, to dialogue with the natural oxidising patina. For the stainless steel version, navy blue, slate grey, or black tones are equally acceptable. NATO fabric straps evoke the avionic heritage but sacrifice tactile complexity. Natural rubber is ideal for humid environments or extreme temperatures.

Strap replacement requires extraction of the spring bar pins using a dedicated spring bar tool. Position the tool perpendicular to the case, maintaining gentle downward pressure on the lug end: the spring bar will retract internally, freeing the strap. Repeat from the other side. For installation, insert the new strap into the lug and press the spring bar until the internal safety click engages. This is a delicate operation: if uncertain, consult a specialist atelier.

Yes, provided the lug width is certified at 20mm. Standard spring bars on this model are approximately 1.6mm in diameter. Always verify compatibility with your strap supplier. Milano Straps offers a complete 20mm collection—leather, NATO, rubber—tested for precise attachment on this reference.

Lifespan depends on material quality, tanning method, and usage intensity. Vegetable-tanned leather subjected to daily wrist contact deteriorates within 3–5 years; premium alligator and calf resist 5–8 years. The bronze case accelerates natural leather ageing through skin acidity and chemical reaction with tannins, so darker-toned straps—which conceal wear—are more practical long-term. Regular maintenance (balm, air drying) extends lifespan by 20–30%.