Though simple in appearance, the large date complication requires considerable expertise. First from a technical point of view, as the mechanism must be capable of providing sufficient and constant energy for this power-hungry display. Then from a design perspective, as this large display must be carefully positioned so as not to obscure the other functions on the dial. A. Lange & Söhne has chosen a classic configuration with separate discs for the units and the tens, powered by a high-performance barrel. The date discs match the black of the dial and make a strong contrast for easy read-off of the white numerals. The date is set by a rapid correction pusher at 10 o'Clock. This Outsize Date is proposed in pink gold and in white gold.