Strap for Seamaster Aqua Terra 150M Co-Axial 34 Stainless Steel / Silver / Bracelet

The lug width of this model is 20mm, measured from the inside of the upper lug to the inside of the lower lug on the case. This parameter is specific to the 34mm Aqua Terra and is critical to ensure aesthetic and functional compatibility with replacement straps.

Alligator is ideal for those seeking pronounced texture and sportiness; vegetable-tanned calf offers tonal versatility and softness; shell cordovan provides deep patina and noble aging; vegetable tanning represents the sustainable choice with primitive character. We advise against fabric straps as a primary solution on this elegant case.

The 231.10.34.20.04.001 requires the use of a spring bar tool. Place the watch with the dial facing downward, insert the tool under the upper lug to gently compress the spring bar and slide the strap outward. Repeat for the lower lug. Insert the new strap by aligning the holes, then push until the spring bar is fully inserted into the case.

A cognac or dark brown alligator creates elegant contrast with the vertical blue dial. If you prefer chromatic coherence, ebony black calf is the formal choice. For sports contexts, aged brown cordovan offers sophistication with resistance to external elements. All 20mm straps from Milano Straps are compatible and customizable.

An artisanal quality leather strap lasts an average of 4-7 years with daily use, depending on the tanning method and exposure to atmospheric agents. Vegetable tanning tends to last longer than dyed calf. Atelier Casati Milano provides 18 months of coverage on every strap produced, and proper strap changes every 4-5 years maintains the aesthetic value of the watch.