PRODUCT DESCRIPTION:
Reference:  L3.721.4.53.6
Collection: Spirit Pilot
Movement type: Automatic.
Case material: Stainless steel.
Strap material: Stainless steel.

MOVEMENT AND FUCTIONS:
Movement type: Automatic.
Caliber: 792.Self-winding mechanical movement beating at 28’800 vibrations per hour, with a power reserve of approximately 68 hours
Function: Hours, minutes, seconds and little seconds at 9.
Special function: Chronometer certified by the COSC.
Chronograph: Chronograph mechanism: central 60-second hand and 30-minute counter at 3 o’clock.
Antimagnetism: Yes

CASE:
Material: Stainless steel and ceramic bezel
Dimension: Ø 39.50 mm.
Water resistance: Water-resistant to 10 bar.
Glass: Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides.
Dial: Black matt 
Thickness: 13.40 mm.
Specificities: Screw-in crown.

STRAP:
Material: Stainless steel.
Buckle: With double safety folding clasp and push-piece opening mechanism
Easily change your bracelet/strap thanks to the Longines interchangeable system