Strap for Seamaster Aqua Terra 150M Master Co-Axial 34 Stainless Steel / Sedna Gold / MOP

The lug width is exactly 16mm. This is the distance between the two spring bars that connect the strap to the case. To verify it, place the watch on a flat surface and measure orthogonally between the centers of the two pins, excluding the rounded heads.

American grain alligator is the heritage choice for this model: the scalar texture does not compete with the mother-of-pearl iridescence and guarantees durability between 5-8 years. Refined alternatives: vegetable-tanned calf (which develops patina) or shell cordovan for moisture resistance. Generic silicone is not recommended on a Sedna Gold.

You will need a spring bar tool (tool with two tips). Place the watch with the strap facing upward, insert the sharp tip of the tool under the pin to be removed, lift slightly and the strap will disengage. Repeat for the other side, then install the new strap by reversing the operation. If you prefer to avoid risks, consult an expert.

Yes, provided that both the lug width and the construction (attachment type) are compatible with 16mm. Milano Straps sells artisanal straps specifically calibrated for this size and tested on Omega models. Always verify the geometric specifications before ordering.

A quality alligator or shell cordovan, with regular maintenance (periodic cleaning, drying after moisture exposure), guarantees 5-8 years of daily wear. Vegetable-tanned calf typically lasts 4-6 years. Longevity depends on sun exposure, constant humidity, and frequency of use. Superior quality straps can exceed 8 years if well preserved.