Strap for Aquis Small Seconds Date 45.5 Stainless Steel / Blue / Bracelet

The lug width is 20mm. This measurement ensures compatibility with straps designed for professional diver watches and maintains proper ergonomic proportion with the 45.50mm case diameter. Verify compatibility by measuring the inside of the lug hole with a digital calliper.

For diving or frequent water contact: Cordura® NATO or FKM (Viton) rubber strap. For formal and water-to-land transition: alligator with vegetable tanning and coarse grain. For vintage aesthetics with natural patina: shell cordovan in burgundy or medium brown calf anilina. Selection depends on primary use environment and personal aesthetic preference.

Use a spring-bar removal tool (lever or dedicated tool). Position the watch face-down, insert the flat end of the tool beneath the spring-bar until you hear a click, then withdraw the lug from the lug hole. Repeat for the opposite side. For installation, align the new strap lugs with the holes and press until the spring-bar locks into place.

Yes, provided they have an exact 20mm lug width and the spring-bar is rated for at least 5kg load. Avoid budget straps with undersized lugs (19.5mm), as they cause dangerous play during submersion. Milano Straps offers artisanal 20mm straps tested for this model.

An artisanal alligator or shell cordovan strap lasts 3–5 years with moderate use (2–3 days per week). Frequent saltwater exposure reduces lifespan to 18–24 months. Anilina calf is less water-resistant (12–18 months). FKM rubber lasts 5–7 years. Patina and wear marks are natural and increase aesthetic value.