Steinhart · Diver

Strap for Ocean One Black

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceT0204
FamilyDiver
MovementETA caliber 2824-2 hours, minutes, seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Diver T0204

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Diver T0204, seen from the bench

The Steinhart Diver features the automatic ETA 2824-2 caliber with hours, minutes, seconds and date indication. The watch has 22mm lugs and is configured as a contemporary dive instrument. The ETA movement guarantees a standard power reserve for this category of timepiece.

Frequently asked questions

What is the lug width of the Steinhart Diver T0204?

The lug width of the Steinhart Diver T0204 is 22 millimetres. This measurement is taken from the inner distance between the two lugs of the case. Measurement should be conducted with a digital calliper for precision to one-tenth of a millimetre.

What is the best strap for the Steinhart Diver T0204?

Strap selection depends on primary usage. For frequent diving: FKM rubber with deployante clasp for chemical resistance and rapid drying. For predominantly terrestrial use: vegetable-tanned leather for aesthetic evolution and natural patina. For versatility: NATO webbing at high density. For luxury: alligator with natural grain.

How do you change the strap on the Steinhart Diver T0204?

The strap is removed by pressing the springbar springs from one side. Use a dedicated tool or small screwdriver to avoid damage to the case. Once the springs are released, extract the bar completely. The new strap is installed by aligning the holes with the case pins and pressing until the spring clicks into place. Verify that the bar is fully locked on both sides before use.

Which aftermarket straps are compatible with the T0204?

Any strap with a 22-millimetre lug width is compatible with the Steinhart Diver T0204. Milanostraps offers a complete selection of 22mm straps in leather, NATO, rubber and exotic materials such as alligator and shell cordovan. All straps are tested to guarantee perfect alignment and operation without any modification.

How long does a leather strap last on the Diver T0204?

A high-quality leather strap, made with vegetable tanning, has a lifespan of 18-36 months in daily use. Longevity depends on environment (humidity, sun exposure, salt water contact), maintenance (periodic hydration with natural oils), and frequency of use. NATO and rubber straps have superior durability (36-60 months), while shell cordovan can last over 5 years with proper maintenance.

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