Longines caliber L688.5
L688.5 description
Automatic chronograph movement with date and column wheel, based on ETA A08.L01. The .4 version has a silicon balance spring.
All watches using the Longines L688.5 movement:

L2.816.4.53.2
Longines Avigation Big Eye

L2.816.1.93.2
Longines Avigation Big Eye Titanium / Blue

L2.859.4.92.6
Longines Master Collection 44 Chronograph Stainless Steel / Blue / Bracelet

L2.859.4.92.0
Longines Master Collection 44 Chronograph Stainless Steel / Blue / Alligator

L2.759.4.92.6
Longines Master Collection 42 Chronograph Stainless Steel / Blue / Bracelet

L2.759.4.92.0
Longines Master Collection 42 Chronograph Stainless Steel / Blue / Bracelet