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Jaeger-LeCoultre · Polaris

Strap for Jaeger-LeCoultre Polaris Q903818J

The Polaris Mariner Memovox Stainless Steel / Blue / Bracelet takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

21mm
21 mm strapsAll Jaeger-LeCoultre
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Lug width21 mm
Case diameter42 mm
ReferenceQ903818J (aka: 903818J)
FamilyPolaris
MovementJaeger-LeCoultre caliber 956AA Hours, Minutes, Seconds | Date | Alarm
Year2022
CaseStainless Steel
Water resistance300 m

Spring bar

Swiss Standard universal spring bars

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

Standard spring bar · length 21 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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Polaris Mariner Memovox Stainless Steel / Blue / Bracelet — watch

Your watch with our straps

Polaris Q903818J with Grand Cavalier Leather Strap Orange
Polaris Q903818J with Brown Italian Leather Strap
Polaris Q903818J with Black Saffiano Strap Ecru Stitching

Calf, Orange

Grand Cavalier Leather Strap Orange

€120

★ 4.9 · 12

See the strapAll 21 mm straps

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Real photos of the strap and the case. No generated images.

What I'm asked about the Jaeger-LeCoultre Polaris Q903818J

What strap size does the Jaeger-LeCoultre Polaris Q903818J take?

The Jaeger-LeCoultre Polaris Q903818J needs 21 mm between the lugs, usually 18 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Jaeger-LeCoultre Polaris Q903818J be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Jaeger-LeCoultre Polaris Q903818J?

Yes, in 21 mm leather. On a 42 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Jaeger-LeCoultre Polaris Q903818J?

A 21 mm calf strap, for every day. You'll find it ready in the 21 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare straps→

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

Updated on · by Antonio Zichichi