I tried replacing the batteries and accidentally broke the wiring from the sensor to the watch body. It is a flat wire circuit board type wire and cannot be repaired. Is it possible to replace the sensor unit with a new one complete with wiring and what is the part number for ordering?

You may need to reset it. Unfortunately, this can not be done without taking the unit apart. I fixed ours yesterday when the screen was blank, by replacing the internal battery. Part of that process is resetting the clock.

This might solve your problem and so, I have included my full instructions for replacing the battery.

You will need a small phillips screw driver, a paperclip and a new battery. ( a CR2032 works fine and can be bought anywhere)
Keep in mind, you will be handling some electronics, so keeping static discharges to a minimum is a good idea.
*Place the unit face down on a table.
*Remove the battery cover and batteries.
*Using tape, cover the two switch sliders located on the sides of the unit so they stay in place when you remove the back.
*Remove the three screws inside the battery bay and the four longer screws on the main body.
*Before you gently seperate the back from the front, take note of the two battery connections that are on the outer edge of the battery box and are opposite of the strap brackets. These will need to be coaxed through the plastic as you pull the back off. You will also need to manipulate/open the paper roll cover.
*Remove the back cover.
*The top circuit board and printer are connected to the lower circuit board and front cover by a white ribbon cable and wires to a switch. Gently lay the top circuit board and printer to the side, being careful not to unlpug the cables.
*Locate the battery, it is standing on edge. Note the orientation.
*Straighten the paperclip and make a hook so you can remove the battery.
*Install the new battery, taking care to not bend the connectors.
*A label on the inside of the back cover details the reset procedure. Locate the AC and + on the lower circuit board.
*Use the paperclip to make an electrical connection between those two points.
*Reassemble the unit in reverse fashion.
*Pay attention to the switches on the top circuit board and the slots they fit into. These are the black switch sliders that were taped to the side.
*The printer assembly should set into place.
*Reinstall the back cover, coaxing the battery connections through their respective holes.

I hope this solves your problem.

There's a CR2025 battery that runs the digital side. Pop the rear cover with a small flat screwdriver, and a single small Phillips PH000 screw to remove the ground plate that secures it to the circuit board. While you've got it open you should also replace the SR626SW battery that runs the analog side. Six more screws around the top circuit board's circumference, and lift it to access the second battery. Take copious pictures and notes along the way and be careful of the two brass springs and contact plates for the pusher buttons that can fall out.

I just replaced this battery myself, it wasn't easy, but is doable. First, you will need some tweezers, a tiny phillips, and a tiny flat blade screwdriver. Totally at your own risk!

- Remove the 4 small screws on the back of the watch
- You will see a large battery under a metal clamp, this is for the back light. Remove the two phillips screws securing the clamp, and put that aside with the battery and screws. The clamp also has a metal flap on the side that acts as part of the mechanism for the back light button.
- You will now see the second battery hiding under the circuit board, it will have a small black circular rubber sticker on it. Remove the third remaining screw (very near the right hand one you have already removed) to take off the circuit board. It is clicked down slightly onto two lugs, so prise carefully at the left and right to free it
- At this point be very careful not to tip the watch upside down. There are two very small brass springs which make contact with the very top and bottom underneath of the circuit board, which now they are removed could easy fall out
- Under the circuit board is a plastic sheet, remove carefully with tweezers
- You are nearly there! There are three flat head screws, I got away with just undoing the two nearest the battery, and the third I loosened off enough to carefully lift the metal up to get the battery out
- Carefully remove black sticker, and put it on the replacement battery instead, and now reverse the entire process. Getting the metal clamp back on to secure the battery, and put the screws back is really quite fiddly, make sure it is help down properly
- Make sure before you put the circuit board back, that the two brass springs are in place. When putting the metal clamp over the larger battery, make sure the metal flap that is pushed by the backlight button is in place properly.

Avoid touching anything inside the watch with fingers, use tweezers to remove screws and parts, and make sure you keep track of which screws went where. Good luck!

I have the same, assume the watch battery is gone. Handbook says the whole timer has to go to a dealer to replace the battery.. the printer batteries are easily replacable, I wonder why they made the watch battery such a costly deal?

The LCD is having issues. The Seiko Service Center is the only place to repair this watch. Contact them at:

(800) 722-4452

If you go to "www.sportscounters.com/seiko-s149-stopwatch-printer-all-in-one" you will see a telephone number, try calling them for advice.

(This problem is fairly common after replacing batteries, so I suspect that there is a procedure for resetting the timer.)

http://www.timex.com/info/Product_Instruction_Guides_Downloads

Use the numbers on the back of your watch and you will have a PDF version of your instruction manual.

Hope this tip helps

R/

David

When you change the battery on this watch you have to short the circuit board. You need a fine pair of tweezers and you need to look on the circuit board for an arrow or bare spot, put 1 end of the tweezers on that place on the circuit board and the other on the battery at the same time. that should do the trick if the battery was installed correctly and the battery is good.

DONT THROW IT AWAY THAT IS A COLLECTORS ITEM... You can get it taken care of at www.casiowatchrepair.com or call them toll free 877.659.0761 and have them take care of it, the watch will be as good as new.

remove the band and the back of the watch, rotate the back 180 degrees and replace. The alarm should sound again.