L888.2, L619.2 movement
Before we understand the L888 movement and the L619 movement, we have to add the knowledge of the basic version (2892) of the two movements.
ETA 2892A2 movement
2892 was first produced in 1976. After many improvements, has achieved stable performance, easy maintenance, very durable and very thin, the king of the core , which is used by many high-end brands (such as IWC, Omega, Cartier) , Longines, Amy, Tudor, etc.) are widely used.
movement diameter: 25.6mm;
movement thickness: 3.6mm;
kinetic energy reserve time: 42 hours;
function drill number: 21 drills;
balance wheel frequency: 28800A/H. The
L619.2 movement
is the L619 movement, which has been in service for decades by Longines, and is also transformed from the prestigious ETA 2892 movement.
movement diameter: 25.6mm;
movement thickness: 3.85mm;
power reserve duration: 42 hours;
function drill number: 21;
balance wheel frequency: 28800A/H. The thickness of the movement has been increased on the surface of
. The is actually only a little more polished on the 2892 movement, and the 2892-2 movement logo is still engraved on the pendulum plate. Since no major changes have been made, the 2892 movement is inherently insufficient. The efficiency of the chain is still left over. Of course, the advantages of 2892 (such as stable performance, easy maintenance, etc.) have also been maintained .
L888.2, L888.3, L888.4, L888.5 movement
and the L888 movement that gradually replaced the L619 is also based on the 2892 transformation.
movement diameter: 25.6mm;
movement thickness: 3.85mm;
kinetic energy reserve time: 64 hours;
function drill number: 21 drills;
balance wheel frequency: 25200A/H. It can be seen from the surface of
that the diameter has not changed, the thickness has increased, the kinetic energy reserve time has increased, the number of function drills has not changed, and the balance frequency has decreased.
ETA 2892, L888.2 movement, automatic rotor, fine-tuning device, shock absorber change
actual changes, automatic spinner bearing smaller, fine-tuning device changed from eccentric screw to non-stick, shock absorber changed from Yinjia Bailu It is a double T shock absorber (Nivachoc shock absorber, the same shock absorber of Omega 8500 coaxial movement), this change is mainly to reduce the instability caused by frequency reduction and storage.
L888.2 movement, metal balance spring, no card degree fine-tuning device, double T shock absorber
L888 movement is divided into many kinds, such as L888.2, L888.3, L888.4, L888.5 and so on.
L888.3 movement, metal balance spring, no card degree fine adjustment device, double T shock absorber
L888.3 is different from L888.2, pendulum splint has minor modifications, calendar spring changes , etc. The changes to the calendar spring are designed to reduce the energy loss when jumping the calendar at night and ensure the stable running time of the night movement when jumping the calendar.
L888.4 movement, silicon balance spring, no card degree fine adjustment device, double T shock absorber, observatory certification
L888.5 movement, silicon balance spring, no card degree fine adjustment device, double T shock absorber
L888.4 areaDifferent from L888.2, balance spring is changed from metal to silicon balance spring, which increases the anti-magnetic property, and is certified by the observatory , which has more prominent advantages. The L888.5 is the L888.4 movement without chronometer certification. The above
is the difference between the L888 movement and the L619 movement. Each has its advantages. There are different opinions on which movement is stronger and weaker. If it were you, which movement would you choose?
Next, we recommend several models equipped with the above movements:
Longines Concas black face L3.781.4.56.9, rubber strap, 41mm, L888 movement
Longines Concas black face L3.782.4.56.6 , Steel belt version, 43mm, L888 movement
Longines Concas black surface L3.781.4.56.6, steel belt version, 41mm, L888 movement
Longines Concas blue surface L3.782.4.96.6, steel belt version, 43mm , L888 movement
Longines Master L2.793.4.78.3, 40mm, L888 movement
The Masters L2.518.5.78.7, 36mm, L619 movement
, these Longines watches all have exquisite appearance and excellent performance, and are the most popular models at the moment, whether they are casual or formal, they are very suitable.
