Ball Watch · Engineer Hydrocarbon

Strap for Engineer Hydrocarbon NEDU Black / Bracelet

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
ReferenceDC3026A-SCJ-BK
FamilyEngineer Hydrocarbon
MovementBall Watch caliber RR1402C Hours, Minutes, Small Seconds | Date | Chronograph | Chronometer
CaseTitanium

Spring bar

Swiss Standard universal spring bars

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

Straps for the Engineer Hydrocarbon DC3026A-SCJ-BK

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Engineer Hydrocarbon DC3026A-SCJ-BK, seen from the bench

The Ball Watch Engineer Hydrocarbon DC3026A-SCJ-BK is a chronograph descended from Webb C. Ball's 1891 railroad watch precision standards, built for extreme conditions without compromise. The 42mm grade 5 titanium case offers superior corrosion resistance and lightweight durability. The Ball Watch caliber RR1402C chronograph movement features chronometer certification, hours, minutes, small seconds and date. Water resistance reaches 300 meters for recreational diving and rescue operations. The 22mm lug width is proportioned to the case mass, requiring a precisely sized strap for proper fit and stability.

Frequently asked questions

What is the lug width of the Ball Watch Engineer Hydrocarbon DC3026A-SCJ-BK?

The lug width of the Ball Watch Engineer Hydrocarbon DC3026A-SCJ-BK is 22 millimetres. This measurement is taken from the centre of the front lug pin to the centre of the rear lug pin. A compatible strap must have an internal width of exactly 22 millimetres to ensure a precise fit without lateral play.

Which strap is recommended for the Ball Watch Engineer Hydrocarbon DC3026A-SCJ-BK?

For the DC3026A-SCJ-BK, alligator leather straps with vegetable tanning are recommended for formal use and long-term durability, or NATO straps in canvas for sports and operational contexts. Your choice depends on intended use: if you frequent diving or humid environments, vulcanised rubber is the most reliable technical solution.

How do you change the strap on the Ball Watch Engineer Hydrocarbon DC3026A-SCJ-BK?

Strap replacement is performed using a spring bar tool: position the forked tip under the front lug pin, gently pull downward until the internal spring compresses, then slide the pin out of the lug. Repeat this procedure on the rear pin. Reverse the process to install the new strap, ensuring both pins are fully seated and the springs click into position.

Is an aftermarket 22mm strap compatible with the Ball Watch Engineer Hydrocarbon DC3026A-SCJ-BK?

Yes, any strap with a 22-millimetre lug width is compatible. However, we recommend verifying the centre-pin measurement: some manufacturers measure from the outer edge of the lug, producing inaccurate results. Artisanal-quality straps guarantee precise tolerances and secure fitment.

How long does a leather strap last on the Ball Watch Engineer Hydrocarbon DC3026A-SCJ-BK?

A quality alligator or calf leather strap with vegetable tanning lasts an average of 3–5 years with daily use if properly maintained (wiping with a dry cloth, annual conditioning with neutral balm). Exposure to constant humidity, chlorine and sea salt reduces longevity to 1–2 years. Canvas NATO straps last 5–7 years; vulcanised rubber can exceed 10 years whilst maintaining excellent flexibility.

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