ETA 2600 Family

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BRANDS: ETA

Production: 1971 – Current
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

ETA’s current compact compact watch movement family for ladies watches includes the Cal. 2671, 2678, and 2681.

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.

Calibre	Manual 21,600 A/h	Manual 28,800 A/h	Automatic 21,600 A/h	Automatic 28,800 A/h
Base	2640	2660	2650	2670
Date	2641 2691*	2661	2651	2671 2681*
Day/Date	2648	2668	2658 2688*	2678
Date Moon Phase				2675 2685*

Calibre	Start Year	End Year	Jewels	Diameter (mm)	Height (mm)	Complications
ETA 2650	1971	1980	17, 21	7.20	4.80
ETA 2660	1971	2004	17	17.20	3.50
ETA 2671	1971	Current	25	17.20	4.80	Date, Hacking Seconds, Quick Date Correction, Semi-Instantaneous Date Change
ETA 2678	1971	Current	25	17.20	5.35	Date, Day, Hacking Seconds, Quick Date Correction, Semi-Instantaneous Date Change
ETA 2681	1991	Current	25	19.40	4.80	Date, Hacking Seconds, Quick Date Correction, Semi-Instantaneous Date Change
ETA 2688	1981	2001	17	19.40	5.35	Date, Day, Hacking Seconds, Instant Date Change, Instant Day Change, Quick Date Correction