ETA 2688

[bruce79]

What can be said for this movement? I just opened up my DJ and found a 2688 beating inside. It looks as though it's a slow beat ETA, other than that, there's not too much on the forums. Any info would be appreciated. Thanks

[freddy333]

Automatic with sweep seconds, quickset day/date & optional hack feature

Diam= 19.4mm, Height= 5.35mm, 17 jewels, 21600 bph & Power reserve 40h

[alligoat]

Sounds like a variation of the eta 2671 which is used in alot of ladies watches and some of the smaller mens/unisex watches.

A 2836-2 will fit in a DJ case, maybe you have a 2688 because of the impending shortage of eta movements.

[bruce79]

yeah not sure, the 2688 came in an older datejust rep, possibly a tw...definitely a couple years old though...when there were plenty of etas...I wonder if a 2836 would fit in the case though

[alligoat]

It appears that the 2688 pre-dates the 2671- 17 jewels vs 25, both are 7-3/4 lignes, 21,600 bph vs 28,800 for the 2671.

Tudor puts the smaller movement in mid-size and ladies watches. Like the Tudor Mini-Sub has the 2671 movt (or something similar). Hard to say why the DJ would have a 2688, but I would think a 2836 would fit. Rep cases are typically a little bigger than gens, a 2836 fit in both of my 160xx Frankens (gen cases) w/ the addition of a spacer, so there was plenty of room.

I have an older CN sub w/ a 2836-1 movt- backing up ziggy's assertion that all of these reps have surplus movements in them. A 2836-1 pre-dates the 2836-2, putting it around the late 70's. They may just build these reps w/ whatever is available at the time.