Rolex · Sky-Dweller

Strap for Sky-Dweller Stainless Steel / White Gold / Blue / Jubilee

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter42 mm
Reference326934-0004 (aka: M326934-0004)
FamilySky-Dweller
MovementRolex caliber 9001 hours, minutes, seconds, Additional 24 hours Hand (adjustable) | date, annual calendar, month | chronometer
Year2021/1 - 2023
CaseWhite Gold, Stainless Steel

Recommended spring bar

Spring bars Rolex Sky-Dweller 42 — 21mm × 1.5mm

Technical match for lug width and diameter · lug 21 mm · Ø 1.5 mm · closed lugs

All Rolex spring barsOpen →

Straps for the Sky-Dweller 326934-0004 (aka: M326934-0004)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Sky-Dweller 326934-0004 (aka: M326934-0004), seen from the bench

The Rolex Sky-Dweller was introduced in 2012 as a GMT watch with an annual calendar. It features the automatic Caliber 9001 with indication of hours, minutes, seconds, adjustable 24-hour hand, date, annual calendar, and month indication. The 21mm lug case and the movement are chronometer certified.

Frequently asked questions

What is the exact lug width of the Rolex Sky-Dweller 326934-0004?

The lug width of the Rolex Sky-Dweller 326934-0004 is precisely 21 millimetres. This measurement is specific to the white gold and stainless steel two-tone model and is not interchangeable with other sizes. To verify compatibility, measure the distance between the two attachment holes on the case: it must correspond exactly to 21 mm.

Which strap material is most suitable for the Sky-Dweller 326934-0004?

The Sky-Dweller 326934-0004 pairs excellently with Niloticus alligator (regular grain and refined appearance), shell cordovan (for intense chromatic contrast), vegetable-tanned calf leather (for evolving patina), and quality technical rubber. Your choice depends on usage: alligator for formal occasions, calf for daily versatility, shell cordovan for those seeking a strong visual statement, rubber for sports and travel.

How do I change the strap on my Rolex Sky-Dweller 326934-0004?

Strap changes require a spring bar tool (a precision implement with small forks). Insert the fork under the spring of the first lug, apply gentle inward pressure to release the pin, and remove the old strap. Repeat on the second lug. Next, align the new strap's ends with the lug holes and push the pin until it clicks into place. Verify that the strap is securely locked before wearing the watch.

Are aftermarket straps compatible with the Rolex Sky-Dweller 326934-0004?

Yes, any artisanal strap measuring 21 millimetres is compatible with the 326934-0004, provided it is constructed with precision engineering. Rolex uses universal spring bar standards. We recommend straps from specialised ateliers, such as Casati Milano, which guarantee both correct lug width and material quality and finishing compatible with a case of this constructive value.

How long does a leather strap last on the Rolex Sky-Dweller 326934-0004?

A high-quality leather strap (alligator, shell cordovan, vegetable-tanned calf) lasts between 4 and 7 years with regular daily wear. Durability depends on UV exposure, ambient humidity, frequency of wear, and maintenance. Well-cared-for leather, protected from excessive direct sunlight and dried after water contact, develops patina without degradation. Casati Milano offers an 18-month guarantee against manufacturing defects and can perform restorations if the leather deteriorates over time.

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