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Damasko · Three-hand Models

Strap for DS30 Ocean

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll Damasko
Lug width20 mm
Case diameter39 mm
ReferenceDS30.ocean
FamilyThree-hand Models
MovementETA caliber 2836-2 hours, minutes, seconds | date, day
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Three-hand Models DS30.ocean

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Three-hand Models DS30.ocean, seen from the bench

The Damasko DS30.ocean embodies German watchmaking tradition from Weimar, a precision instrument built without compromise where every element follows rigorous functional logic. The Three-hand design reduces the dial to essentials—hours, minutes, seconds, date and day—with geometric simplicity and no ornamentation. The satin ocean blue dial pairs with a 39 mm satin stainless steel case, representing pure instrument aesthetics. Powered by the ETA caliber 2836-2 movement, it features an isochronous hairspring for thermal stability and sapphire crystal. The 20 mm lug width accepts standard watch straps and represents the international standard for 38–40 mm timepieces.

Frequently asked questions

What is the lug width of the Damasko DS30.ocean?

The Damasko DS30.ocean features a lug width of 20 mm. This is the international standard measurement that accommodates straps with external widths ranging from 18 to 22 mm. You can verify this by measuring the internal distance between the spring bar pins on the case lugs.

Which type of strap is best suited for the DS30.ocean?

The DS30.ocean pairs excellently with leather straps featuring vegetable tanning (alligator, grained calf), which reflect the model's robust aesthetic and develop a beautiful patina over time. For sporting or aquatic use, we recommend vulcanised rubber. A NATO cotton strap offers practicality and a vintage military heritage consistent with the watch's German identity.

How do I change the strap on the Damasko DS30.ocean?

Strap replacement requires removal of the two spring bar pins securing the strap to the lugs. Use a dedicated spring bar remover tool or a small flathead screwdriver: apply gentle downward pressure on one spring, extract the pin, and repeat on the opposite side. Align the new strap holes with the lugs and reinsert the pins with care until they click into position.

Can I use third-party straps compatible with a 20 mm lug width?

Yes, absolutely. The 20 mm lug width is an international standard; any quality strap calibrated for 20 mm will fit your DS30.ocean mechanically. We recommend artisanal straps with vegetable-tanned leather, which age harmoniously and provide colour flexibility to refresh your watch's appearance.

How long does a leather strap last on the Damasko DS30.ocean?

A quality vegetable-tanned leather strap typically lasts 2–3 years of moderate daily wear, extending to 5–7 years if rotated with other straps. Patina development is not a flaw—it is character. Wear accelerates with perspiration, humidity and thermal fluctuations. We recommend cleaning the strap with a damp cloth every 2–3 months and applying a protective balm once yearly.

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.

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