Strap for Sea-Dweller Deepsea D-Blue

The Rolex Sea-Dweller 136660-0005 is equipped with a 21mm lug width. This dimension is specific to the 44mm model and ensures proportional aesthetics and optimal comfort. To verify correct measurement, place a flexible ruler perpendicular to the lugs, from shoulder to shoulder at the point where the strap makes contact with the case.

For the Sea-Dweller 136660-0005, an authentic alligator strap is recommended for uncompromised elegance, or vegetable-tanned calf leather for those who appreciate the patina that develops over time. For underwater use or humid environments, a vulcanised rubber strap with titanium deployante is the most functional choice. Texture and colour should be selected based on intended use and personal aesthetic preference.

To change the strap, you will need a specialised tool to remove the spring bars that secure the strap to the case lugs. It is important to use a replacement spring bar with the correct diameter for the 21mm lug width. This operation requires precision to avoid damage to the case. If you lack experience, it is advisable to consult a professional watchmaker or use the customisation service offered by Casati Milano.

Any strap with a lug width compatible with 21mm can be used on the Sea-Dweller 136660-0005. However, it is recommended to select straps made from quality materials—such as alligator, artisanal calf leather, or vulcanised rubber—to ensure durability and aesthetic coherence with the prestige of the watch. milanostraps.it offers a carefully curated collection of 21mm straps, crafted to artisanal standards and compatible with this model.

A high-quality leather strap, if made with vegetable tanning and properly maintained, typically lasts 3-5 years with daily wear. Longevity depends on frequency of use, moisture exposure, tanning method, and maintenance. Alligator leather is particularly durable due to its natural fibrous structure. Casati Milano's artisanal straps are warranted for 18 months against manufacturing defects, with the option for extension or replacement if the strap wears naturally over time.