Strap for Seamaster Aqua Terra 150M Master Chronometer 38 Stainless Steel / Black / Alligator

The lug width measures 19mm. This width is standard for mid-size diameters and ensures balanced proportions on the 38mm case. The measurement is taken by measuring the distance between the hinge pins, not the internal space of the strap.

There is no universal choice. Vegetable-tanned alligator is ideal for formal elegance and develops a unique patina over time. Italian calf offers softness for daily business wear. FKM rubber or NATO fabric straps guarantee sports practicality. The choice depends on your habits and use context.

Remove the spring bars from the hinge pins using an appropriate tool (spring bar tool or dedicated tool). Gently extract the pins, then remove the old strap. Insert the new strap by aligning the holes to the hinges, then secure the pins with the spring bars. If you are not experienced, consult a professional watchmaker to avoid damage.

Yes, all straps with 19mm lug width are compatible. High-quality artisanal straps enhance the aesthetic and comfort experience. It is advisable to choose straps made with noble materials and refined finishes to maintain coherence with the watch's quality.

A quality leather strap, with vegetable tanning and correct finishes, lasts an average of 3-5 years with daily use. Durability depends on humidity, sun exposure, and maintenance. A shell cordovan strap lasts longer thanks to natural lamination. FKM rubber straps have similar durability (3-5 years) with visible wear over time.