Strap for Lange 1 Tourbillon Perpetual Calendar White Gold / 25th Anniversary

The Lange 1 reference 720.066 is fitted with 22 millimetre lugs. This measurement is critical to ensure proper strap compatibility: a lug width that is too wide will cause lateral misalignment, whilst a width that is too narrow may result in excessive structural stress. We always verify the internal measurement between the lug attachments before dispatching a personalised strap.

For the 720.066 in white gold, we recommend Grade A alligator: the consistent grain structure and durability of this leather enhance the compositional sophistication of the watch. Alternatively, vegetable-tanned calf leather offers a honey-coloured patina that develops naturally over time, or a cotton-ribbed NATO strap for seasonal versatility. Avoid light-toned straps: the chromatic contrast with white gold would create visual imbalance on this aesthetically refined piece.

The strap on a Lange 1 is changed via removable spring bars positioned on the lug attachments. We recommend using a dedicated spring bar tool to avoid damage to the polished white gold surfaces. If uncertain, contact an authorised A. Lange & Söhne service centre: the value of the timepiece justifies professional intervention.

Absolutely. A high-quality bespoke strap represents an aesthetic and comfort upgrade for a watch of this calibre. We recommend noble leathers – alligator, calf, shell cordovan – that preserve the constructive character of the 720.066. What matters is respecting the 22 mm lug width and ensuring the colours harmonise with white gold rather than create jarring contrast.

A bespoke leather strap in noble leather typically lasts between 4 and 8 years with daily wear, depending on the material and frequency of use. Alligator tends to last longer due to fibre density; vegetable-tanned calf develops a fascinating patina but requires reduced exposure to humidity. Proper drying after rain and rotating with alternative straps significantly extends the leather's serviceable life.