Rolex · Explorer

Strap for Explorer 39 Stainless Steel / Black

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

Lug width20 mm
Case diameter39 mm
Reference214270-0003
FamilyExplorer
MovementRolex caliber 3132 hours, minutes, seconds | chronometer
Year2016 - 2021
CaseStainless Steel

Recommended spring bar

Spring bars Rolex Submariner 16613 — 20mm

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm

All Rolex spring barsOpen →

Straps for the Explorer 214270-0003

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Explorer 214270-0003, seen from the bench

The Rolex Explorer 214270-0003 is a 39mm stainless steel model featuring the Rolex 3132 caliber with COSC chronometer certification and integrated GMT function. The case is constructed from 904L stainless steel with a Twinlock crown, sapphire crystal, and 100-meter water resistance. The black dial features applied indices and Mercedes hands. The 20mm lug width accepts straps up to 10mm thickness, with vegetable-tanned leather between 1.4 and 2.2mm recommended for visual proportion.

Frequently asked questions

What is the lug width of the Rolex Explorer 214270-0003?

The lug width of the Rolex Explorer 214270-0003 is 20mm. This measurement is specific to this model and is not interchangeable with other Rolex Explorer or collection models. You can verify it by measuring the distance between the case lugs with a digital calliper.

Which strap is most suitable for the Rolex Explorer 214270-0003?

The most suitable strap depends on intended use. For formal elegance and natural patina development, we recommend alligator with vegetable tanning or shell cordovan. For daily practicality, vegetable-tanned calf. For outdoor and extreme resistance, a NATO in cotton-polyester in dark grey or navy blue maintains Explorer austerity. The 20mm lug width accommodates all these options.

How do I change the strap on my Rolex Explorer 214270-0003?

Strap replacement is straightforward but requires care. Position your watch face-down on a soft surface. Using a thin spring bar tool, gently press inward on the lug shoulder to release the internal spring. The lug will detach freely. Insert the new 20mm strap by aligning the holes with the case lugs and press until the spring bar clicks into position. Repeat for the other lug. If unsure, consult a trusted watchmaker.

Is an aftermarket strap compatible with the Rolex Explorer 214270-0003?

Yes, provided it has a lug width of exactly 20mm and deployant clasp thickness up to 10mm. Verify specifications before purchase, as many manufacturers do not respect Rolex tolerances. A quality strap with vegetable tanning or cordovan leather preserves the watch's identity better than synthetic alternatives. Milanostraps guarantees compatibility for the 214270-0003.

How long does a leather strap last on a Rolex Explorer 214270-0003 with daily wear?

Lifespan depends on material and climate. Alligator with vegetable tanning and shell cordovan maintain structural integrity for 4-6 years of daily wear before replacement is needed. Vegetable-tanned calf has similar longevity but develops colour more quickly. Cotton-polyester NATO resists 3-5 years. Regular maintenance—protection from salt water, air-drying after moisture exposure—extends these periods. Casati Milano offers an 18-month warranty on manufacturing defects.

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