Panerai · Submersible

Strap for Luminor Submersible Automatic Acciaio Blue

The Luminor Submersible Automatic Acciaio Blue takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width24 mm
Case diameter44 mm
ReferencePAM00731 (aka: PAM 731)
FamilySubmersible
MovementPanerai caliber OP XXX Hours, Minutes, Small seconds | Date | Chronometer
Year2017 - 2017
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 Submersible PAM00731

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Submersible PAM00731, seen from the bench

The Panerai Submersible PAM00731 is a 44mm stainless steel automatic watch with OP XXX chronometer-certified movement, featuring hours, minutes, small seconds, and date. The watch offers 300-meter water resistance and incorporates technical heritage from Italian military diving prototypes, including a screw-down crown, unidirectional bezel, and high-contrast black dial. The 24mm lug width is designed proportionally for the case diameter and compatibility with diving suits.

Frequently asked questions

What is the lug width of the Panerai Submersible PAM00731 (aka: PAM 731)?

The PAM00731 has a 24mm lug width, measured between the lugs (from articulation point to articulation point). This width is specific to recent Submersible models and should be verified before purchasing an aftermarket strap to ensure compatibility with the case's integrated spring bars.

Which strap is best suited for the Panerai Submersible PAM00731?

The best balance between aesthetics and durability is a handcrafted alligator or calf leather strap, which develops a natural patina over time and fits perfectly with the 44mm case proportions. For frequent diving use, FKM rubber ensures resistance to saltwater. A heavy canvas NATO strap reinforces the model's military heritage.

How do you change the strap on the Panerai Submersible PAM00731?

Strap replacement requires a precision spring bar tool. Position the watch on a soft surface, locate the elastic spring bars hidden under the lugs, gently push inward to release one lug, then fully remove the lug. Repeat the procedure on the other side. Install the new strap by reversing the process, ensuring the spring bars are correctly secured.

Is there an aftermarket strap compatible with the PAM 731?

Yes. 24mm aftermarket straps specifically designed for Panerai Submersible and similar models are widely available online. Milano Straps offers a collection of 24mm handcrafted leather straps, customizable in color, initials, and stitching, guaranteeing geometric compatibility and superior build quality compared to mass-produced alternatives.

How long does a leather strap last on a Panerai Submersible PAM00731?

A handcrafted quality leather strap, under normal use conditions (daily wear, protected by wetsuits or clothing), maintains structural integrity for 3-5 years before replacement is needed. Premium leathers such as alligator develop patina without degradation, while European calf leather tends to wear more quickly at the edges. Lifespan extends significantly if the strap is not exposed to extreme climates (prolonged heat and humidity) or extended immersions without protection.

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

The atelier's website: casatimilano.com