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.

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  • Ships in 1–3 working days
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  • 12-month warranty on manufacturing defects
  • Hand-stitched in Milan
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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

1815 Chronograph Diamond / MOP blue — watch

What length do I need?

Measure your wrist with a tailor's tape or a piece of string, comfortably snug.

Wrist circumferenceLength (long side / short side)
15.0–16.4 cm110 / 70 mm
16.5–17.8 cm115 / 75 mm
17.9–19.0 cm120 / 80 mm
19.1–20.4 cm125 / 80 mm
20.5–21.6 cm130 / 85 mm
21.7–22.9 cm135 / 85 mm
over 22.9 cmon request

The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.

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. 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.

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