Strap for Seastar 1000 Quartz 40 Wilson WNBA / White

The lug width of the Tissot Seastar T120.410.17.011.00 is 20mm. This measurement represents the distance between the two lugs (spring bar attachments) where the strap secures to the case. To verify the measurement accurately, remove the current strap and use a calliper to measure from the inner face of one lug to the opposite side. A 20mm lug width is standard in the sports watch segment and provides access to a broad range of aftermarket straps.

The Seastar benefits particularly from alligator straps with compact grain or shell cordovan leather, as these noble materials enhance the watch's marine identity without compromising its technical steel case character. For those seeking pure sports functionality, a high-density polyamide NATO or vulcanised rubber are equally valid choices, guaranteeing saltwater resistance and ease of replacement. The choice depends on your daily usage and personal aesthetic preferences.

Strap replacement requires one simple tool: a spring bar tool or small flathead screwdriver. Locate the spring bar pins (lateral attachments) holding the strap to the case. Gently push the pin inward with the tool, and the lug lifts away effortlessly. Proceed from the same side for both attachments. When inserting the new strap, align the lugs with the holes and push the spring bars until you feel a click of secure attachment. Avoid hammering directly on the case and work on a soft surface to prevent steel scratching.

Yes, any strap with a 20mm lug width is fully compatible with the Seastar T120.410.17.011.00. MilanoStraps offers a curated selection of artisanal straps in this size: alligator, calf leather, shell cordovan, polyamide NATO, and structured rubber. Always verify that your chosen strap is marked 20mm to ensure perfect fit and natural visual transition between case and wrist band. Our straps are ready to ship and customisable according to your preferences.

Leather strap longevity depends on material quality and daily usage. An artisanal alligator or calf leather strap worn moderately 5-6 days per week maintains structural integrity for 3-5 years before visible signs of aging appear. Shell cordovan, thanks to its natural density and patina-developing capability, may extend beyond 5 years. Exposure to chlorine, saltwater, and perspiration accelerates aging: gentle drying after marine use significantly prolongs strap life. MilanoStraps offers replacement and regeneration services to further extend longevity.