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Exact reference

A. Lange & Söhne LANGE 1 TOURBILLON PERPETUAL CALENDAR - 720.066

720.066 Historical / ownership-only

Licensed benchmark ownership-only historical identity

Case

Dimensions and fit

direct
Case length41.9 mm
Case width / diameter41.9 mm
Case thickness12.2 mm
Lug-to-lugNot recorded
Lug widthNot recorded
Water resistanceNot recorded

The dimension basis is not currently recorded.

Open dimension source ↗
Movement

Calibre and mechanism

Automatic
CalibreA. Lange & Söhne L082.1
Normalized calibreALANGESHNEL0821
GenerationNot recorded
Power reserve50 h
Open movement source ↗
Technical data

Conventional winding

Linked to sourced calibre programme
ApplicabilityGeneric-with-warning
DirectionBoth
TPD minimum650
TPD target650
TPD maximum650

Conventional winding fields are evidence-linked reference data. They are separate from any device-specific axial-control profile.

Open winding source ↗
Market context

Market-value disposition

Date not recorded

No exact-reference public market estimate has been admitted for this record.

Market observations are separate from manufacturer specifications and are not used to fill technical gaps.