Strap for Seastar 1000 Professional Limited Edition

The lug width of the Tissot Seastar T120.614.11.041.00 is 23mm. This measurement is the distance between the two side lugs of the case and determines compatibility with aftermarket straps. It is a precise, non-standard dimension, so verification before ordering a replacement strap is essential. Measure using a ruler positioned on the inner side of the case at the point where the lugs attach.

For the T120.614.11.041.00, the choice depends on intended use. For formal elegance, an alligator strap with vegetable tanning enhances the sophistication of the ceramic and steel case. For sports or diving applications, cotton and nylon NATO straps offer maximum durability and practicality. Calf leather with vegetable tanning represents an excellent compromise, developing a fascinating patina over time. Rubber, finally, is ideal for those wishing to preserve the original strap pristine, offering a professional and nautical appearance.

Changing the strap is a straightforward operation requiring a specific tool: a Spring Bar Tool. Place the watch on a soft cloth, locate the small metal pin (spring bar) running laterally through the lugs, insert the tool tip into the hole to release the spring, and extract the strap. To install the new one, insert the spring bar through the dedicated holes in the strap and secure it back into the lugs. If uncertain, a professional watchmaker can complete this task in minutes.

The Tissot Seastar T120.614.11.041.00 is compatible exclusively with straps featuring a 23mm lug width. Many standard straps available in the market (18mm, 20mm, 22mm) do not fit correctly. Milano Straps offers a curated collection of 23mm straps in leather, alligator, calf, NATO, and rubber, all tested and compatible with your watch. Always verify the lug width on your case before ordering.

The durability of a leather strap depends on several factors: tanning quality (vegetable tanning is more durable than chrome tanning), frequency of wear, moisture exposure, and maintenance care. A calf strap with vegetable tanning, if worn daily, maintains excellent appearance for 3–5 years. An alligator strap, thanks to the natural robustness of the leather, can last 5–8 years. To extend durability, avoid prolonged moisture exposure, gently clean with a soft cloth, and occasionally apply quality leather balm. NATO straps, being textile-based, are virtually indestructible and allow quick replacement if needed.