Longines Master Collection 42 Chronograph Calendar Stainless Steel / Silver-Arabic / Bracelet
L2.773.4.78.6 Historical / catalogued
Exact Fiduchron published execution
Case
direct Dimensions and fit
Case length42 mm
Case width / diameter42 mm
Case thickness14.2 mm
Lug-to-lug49.5 mm
Lug widthNot recorded
Water resistanceNot recorded
The dimension basis is not currently recorded.
Open dimension source ↗Movement
AutomaticCalibre and mechanism
CalibreLongines L687
Normalized calibreLONGINESL687
GenerationLongines manufacturer instruction-manual reference-prefix equivalence
Power reserveNot recorded
Technical data
Linked to sourced calibre programme Conventional winding
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
Date not recordedMarket-value disposition
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.