Milano Straps
← OmegaSearchCart
Menu

Omega · Aqua Terra

Strap for Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Yellow Gold / Diamond / MOP / Bracelet

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

16mm
16 mm strapsAll Omega
Lug width16 mm
Case diameter30 mm
Reference231.25.30.20.55.004 (aka: 23125302055004)
FamilyAqua Terra
MovementOmega caliber 8520 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement
CaseMother of Pearl | Yellow Gold, Stainless Steel

Spring bar

Spring bars for Omega

The right category for this model · choose the 16 mm size

View →

Straps for the Aqua Terra 231.25.30.20.55.004 (aka: 23125302055004)

Selected for the 16 mm lug width

All 16 mm straps →

The Aqua Terra 231.25.30.20.55.004 (aka: 23125302055004), seen from the bench

The Omega Seamaster Aqua Terra 150M Co-Axial 30 ref. 231.25.30.20.55.004 is a contemporary evolution of a legend born in 2005. This 30mm stainless steel and yellow gold case with mother-of-pearl dial combines elegance and functionality. The 16mm lug width is characteristic of this reference and ensures perfect visual proportions on the compact case. Inside beats the Omega caliber 8520, a Co-Axial mechanism with patented escapement ensuring certified chronometer precision. The case features a screw-down caseback guaranteeing 150m water resistance and a sapphire crystal with anti-reflective treatment.

Frequently asked questions

What is the lug width of the Omega Aqua Terra 231.25.30.20.55.004?

The lug width of the Omega Aqua Terra 231.25.30.20.55.004 is 16mm. This dimension is specific to the ladies' model and measures the distance between the two lugs of the case. It is essential to respect this measurement when selecting an aftermarket replacement strap to ensure proper fit.

Which strap material pairs best with this bimetallic Aqua Terra?

Alligator represents the most refined choice for this model: its natural texture and subtle patina create an elegant contrast with the yellow gold and steel combination, amplifying the sophistication of the mother-of-pearl dial. Vegetable-tanned calf leather represents a versatile alternative with fascinating aging over time.

How do you change the strap on the Omega 231.25.30.20.55.004?

The strap is removed using the correct tools: a small flathead screwdriver or a dedicated spring bar tool. Position the watch in a rubber-lined vise, locate the attachment pins, and gently push outward to release them. Installing the new strap requires the same reverse procedure, paying attention to perpendicular positioning of the pins.

Is there an aftermarket strap compatible with this reference?

Yes, any strap with a 16mm lug width is compatible with the Omega Aqua Terra 231.25.30.20.55.004. Online you will find ready-to-ship straps in alligator, calf, NATO, and rubber. The Casati Milano atelier offers bespoke service with personal leather selection and customizations.

How long does a leather strap last on this watch?

A high-quality leather strap (alligator, vegetable-tanned calf) lasts on average 3-5 years with daily wear, extendable with regular maintenance and protection from excessive moisture. Durability depends on the intensity of use, care applied, and climatic conditions. Casati Milano provides an 18-month warranty on all handcrafted straps.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only