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Exact reference

Longines Master Collection 40 Chronograph Calendar Stainless Steel / Silver / Bracelet

L2.673.4.78.6 Historical / catalogued

Exact Fiduchron published execution

Case

Dimensions and fit

direct
Case length40 mm
Case width / diameter40 mm
Case thickness14.3 mm
Lug-to-lug46.7 mm
Lug widthNot recorded
Water resistanceNot recorded

The dimension basis is not currently recorded.

Open dimension source ↗
Movement

Calibre and mechanism

Automatic
CalibreLongines L687
Normalized calibreLONGINESL687
GenerationLongines manufacturer instruction-manual reference-prefix equivalence
Power reserveNot recorded
Open movement source ↗
Technical data

Conventional winding

Linked to sourced calibre programme
ApplicabilityCalibre-family programme
DirectionBoth
TPD minimum650
TPD target650
TPD maximum800

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.