Today's watch is a complex watch for its size. It's also my sisters birthday, and the model number contains her initials.
The watch is by Casio, and is part of their Lilana line of watches. The Lilana range isn't mentioned much on any of the websites I've found, but it gets a special mention in the Casio Japan company history. In that listing, it says that the Lilana watches were first released in November 2004. The line was designed to be for cool watches for women, but doesn't seem to be around anymore as the Casio Lilana website has a front page but nothing else. The line had a tag line of "True Time & Solar Power" and this refers to he fact that the watches have both radio control and solar power. The line also had its own logo with a round symbol with a swirly flower pattern, and this could be found on the watch back.
This model is the LNA-2LJ (or more specifically the LNA-2LJ-5AJF). It was released on November 27th 2004 making it one of the first Lilana watches. It is a 3 hand dial design with a date window at the 4 o'clock position. It has solar power, and works on the 40 and 60kHz radio control frequencies. The date is also done with a perpetual calendar, so it will auto correct based on which month it is. There are two hidden buttons on the side which control the adjustment and mode (where the seconds hand turns to various places to designate whether it is receiving a signal, show whether it is am or pm, and other things). This is all powered by a Casio 3717 module. The watch is also 5 bar water resistant, but the amount or resistance is only shown on the label and not the watch case.
This particular version has a brown face and a Pinky beige strap, but the design came in a range of colours including all black, and black with a white strap.
It was a pretty expensive watch when it first came out, with a retail price of ¥36,750 (after tax). Some of the original posters can be seen on the ZonaCasio blog at link (in Spanish).
