Longines caliber L688.5
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L688.5 description
Automatic chronograph movement with date and column wheel, based on ETA A08.L01. The .5 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