Strap for Seamaster Aqua Terra 150M Master Chronometer 38 Sedna Gold / Diamond / Snow Diamond / Alligator

The lug width of model 220.58.38.20.99.003 is 19mm. This width is standard for 38mm Seamaster Aqua Terra watches and represents the ideal compromise between elegance and practicality. To verify the measurement, use a digital caliper positioned perpendicularly to the case lugs at the strap attachment point.

Alligator in cognac, brown or chocolate tones enhances the warmth of Sedna Gold, creating a sophisticated colour harmony. For a sportier option, vegetable-tanned calf leather offers a natural patina that ages beautifully. If you wish to maintain the watch's aquatic vocation, a black or blue rubber strap is the most functional and salt-water resistant choice.

Strap replacement requires a specific spring bar tool or a small screwdriver, depending on the case configuration. Position the watch on a soft support, access the lugs from the back or side, use the tool to depress the spring bar on one side, remove the old strap, insert the new one by aligning the holes and re-engage the spring bar into its seat. If you are not experienced, entrust the operation to a professional watchmaker.

Yes, any strap with a 19mm lug width is compatible with the Seamaster Aqua Terra 220.58.38.20.99.003. MilanoStraps offers a complete selection of handcrafted straps in leather, fabric and rubber, all available in 19mm width. Customizable straps allow you to choose colour, length, stitching thread type and even engraved initials.

A quality leather strap, made with vegetable tanning or alligator, has an average lifespan of 3-5 years with daily use and regular maintenance. Aging accelerates if frequently exposed to sweat, salt water or prolonged humidity. To extend the strap's life, dry it after water contact, avoid direct intense sunlight exposure and occasionally apply a protective balm specifically designed for leather. Straps from Casati Milano include an 18-month warranty against manufacturing defects.