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A. Lange & Söhne · 1815

Strap for A. Lange & Söhne 1815 823.042

The 1815 Chronograph Diamond / MOP blue takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll A. Lange & Söhne
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Lug width20 mm
Case diameter40 mm
Reference823.042
Family1815
MovementA. Lange & Söhne caliber L951.0 Hours, Minutes, Small seconds | Chronograph, Column wheel, Flyback
Year2009 - 2011
CaseWhite Gold

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 20 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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1815 Chronograph Diamond / MOP blue — watch

Straps for the 1815 823.042

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

What I'm asked about the A. Lange & Söhne 1815 823.042

What strap size does the A. Lange & Söhne 1815 823.042 take?

The A. Lange & Söhne 1815 823.042 needs 20 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the A. Lange & Söhne 1815 823.042 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 A. Lange & Söhne 1815 823.042?

Yes, in 20 mm leather. On a 40 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the A. Lange & Söhne 1815 823.042?

A 20 mm box calf. You'll find it ready in the 20 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