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Re: 2500B vs. 2500C

In Response To: 2500B vs. 2500C ()

: 2500B beats at 28,800 beats per hour, or 8
: beats per second (8 x 60 x 60 = 28,800).
: 2500C beats at 25,200 beats per hour, or 7
: beats per second. Also, 2500C has a modified
: lift angle which makes production easier and
: also more closely aligns with the
: recommendations of George Daniels (the
: watchmaker who created the co-axial
: escapement). In fact, Mr. Daniels also
: recommended the lower beat rate in 2500C.
: That's why I suspect that Omega will stop at
: the C version, since this is also the
: version in every Planet Ocean model ever
: produced.

: 2500C has a longer power reserve (about 3.5
: hours longer) than 2500B since it is beating
: more slowly. The watch also isn't working as
: hard since it is beating more slowly, so
: 2500C could potentially see greater
: longevity (this obviously has not been
: studied yet, since 2500C is far too new).

: One thing of interest about these two movements
: - many people think of a "sweeping
: second hand" as being in constant
: motion. In fact, in the case of 2500B, you
: actually see 8 tiny jumps per second (each
: one corresponding to one of the
: "beats", or vibrations, of the
: rotor). The same is true of caliber 1120 in
: the Seamasters, since this watch has the
: same beat rate. These tiny jumps create the
: illusion of constant motion to the untrained
: eye.

: By comparison, 2500C has 7 tiny jumps per
: second to create its sweeping second hand
: motion, since it beats at 7 vibrations per
: second.

How would I identify the movement I have?