Panerai · Luminor

Strap for Luminor GMT 40mm

The Luminor GMT 40mm takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width22 mm
Case diameter40 mm
ReferencePAM00159 (aka: PAM159, PAM 159)
FamilyLuminor
MovementPanerai caliber OP VIII Additional 24 Hours Hand (adjustable), Hours, Minutes, Small seconds | Date
Year2003 - 2005
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 Luminor PAM00159

Selected for the 22 mm lug width

All 22 mm straps →

The Luminor PAM00159, seen from the bench

The Panerai Luminor PAM00159 is a 40mm stainless steel sports watch representing authentic Italian watchmaking heritage. It features the Panerai OP VIII automatic caliber with hours, minutes, small seconds, date, and a 24-hour GMT hand. The model retains the iconic screw-down crown and compact proportions typical of the classic Luminor line, designed for reliable daily wear from formal occasions to casual use. The 22mm lug width follows Panerai standards for this dimensional family.

Frequently asked questions

What is the lug width of the Panerai Luminor PAM00159 (PAM159)?

The lug width of the Panerai Luminor PAM00159 is exactly 22mm. This width is standard for Luminor models in the 40mm case. To verify, measure with a caliper the distance between the metal attachment shoulders on the case, perpendicular to its plane. If you are looking for compatible straps, always ensure they are specified for 22mm: even a 1mm deviation would affect the fit and create unwanted gaps.

Which strap should I choose for the PAM00159?

Tuscan vegetable-tanned leather remains the most authentic choice for the PAM00159, in tobacco brown, dark brown, or cognac tones. These materials develop an extraordinary patina over time. For those preferring greater water resistance, chrome-tanned calf offers uniform color and superior durability. Technical NATO fabric is ideal for frequent sports use, while alligator brings the Luminor toward formal elegance. The choice depends on your use context and aesthetic preferences.

How do I change the strap on my Panerai PAM00159?

Changing the strap on the PAM00159 is straightforward: place the watch on a soft surface with the caseback facing upward. Locate the spring bars (the small metal pins that hold the strap in place), typically accessible from the back of the case. Using a specialized tool or fine punch, gently push the spring bar outward to remove it. Remove the old strap and insert the new one by aligning the lugs, then reinsert the spring bars. Avoid sudden movements and verify that the strap is secure before wearing the watch.

Which aftermarket strap is compatible with the PAM00159?

Any strap made for a 22mm lug width is compatible with the PAM00159. Milano Straps offers a collection of artisanal leather, fabric, and rubber straps, all available in the 22mm width. Always verify that the strap explicitly declares 22mm compatibility and that the lugs are correctly sized for the Panerai case. Customizable straps also allow you to select the buckle type (deployant, standard buckle) and stitching details.

How long does a leather strap last on the PAM00159?

The lifespan of a leather strap depends on frequency of use, moisture exposure, and material quality. Tuscan vegetable-tanned leather, if exposed to constant humidity or worn daily in warm environments, maintains functionality for 2-3 years before requiring replacement. Chrome-tanned calf is more durable (3-4 years) thanks to the tanning process. To extend service life, avoid wearing the PAM00159 while swimming or during prolonged water exposure, and allow the strap to air dry after casual moisture contact. A superior quality strap, such as those made by Casati Milano with an 18-month warranty, better withstands aging while maintaining elasticity and water resistance.

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

The atelier's website: casatimilano.com