|Winding:||Automatic, Central Rotor Automatic Winding|
|Diameter:||19.40 mm (8.75 ligne)|
|Image from TimeConnection.com||Complications:||Date, Day, Hacking Seconds, Instant Date Change, Instant Day Change, Quick Date Correction|
|Hands:||Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00, Day Window at 3:00|
|Distinguishing Technical Characteristics|
|Production: 1981 – 2001|
Cal. 2688 is part of ETA’s regular “Mecaline” line. It was introduced in 1981 and produced through 2001.
ETA produced a variety of movements in the 2600 family since the 1970s. This includes both automatic and hand-winding variants, 7.75 and 8.75 ligne sizes, and 21,600 A/h and 28,800 A/h versions. In the table below, 8.75 ligne movements are denoted with an asterisk and currently-produced movements in bold.