Longines Master Collection Chronograph – 40 mm

Reference Number
L2.673.4.78.3

TECHNICAL SPECIFICATIONS

Case
MATERIAL: Stainless steel
GLASS: Scratch-resistant sapphire crystal
CASE BACK: Transparent case back with sapphire crystal
DIMENSION: 40.00 mm
LUG DISTANCE: 21 mm
THICKNESS: 14.30 mm
WATER RESISTANCE: Water-resistant to 3 bar
WEIGHT: 93.7 g

Dial and Hands
DIAL COLOUR: Silver “barleycorn”
HOUR MARKERS: Painted Arabic numerals
HANDS: Blued steel hands

Movement and Functions
MOVEMENT TYPE: Automatic
CALIBER: L687

MOVEMENT DESCRIPTION
Self-winding mechanical movement beating at 28’800 vibrations per hour, with a power reserve of approximately 66 hours

FUNCTIONS
Hours, minutes, small seconds with 24 hours indicator at 9 o’clock. Date indicated by the half moon central hand. Moon phase display at 6 o’clock.

SPECIAL FUNCTIONS
Moon-phase

CHRONOGRAPH
Column Wheel Chronograph

CHRONOGRAPH FUNCTIONS
Chronograph mechanism: central 60 seconds hand, moon phase display with 12 hours counter at 6 o’clock and 30 minutes counter with day and month display at 12 o’clock

Strap
TOP: Alligator leather
UNDERSIDE: Calf leather
COLOUR: Brown
BUCKLE: With triple safety folding clasp and push-piece opening mechanism