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Seiko 3M21 Manual

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User reviews and opinions

Comments to date: 8. Page 1 of 1. Average Rating:
zenneger 9:43am on Tuesday, October 12th, 2010 
We purchased two of these units, one for each conference room, they constantly lose connection. Easy setup and I like the size of the mouse none could not get 2 work on my dell desktop ; worked great on my dell laptop could not get 2 work on my dell desktop
superluis 3:10am on Sunday, September 12th, 2010 
I use it with my computer. I find that it fits very comfortably in my hand. Comfortable Design,Fast Response,Glides Smoothly. My Logitech usb mouse has a tilt wheel which gives two extra buttons. The Microsoft mouse would be better if it had that feature.
dgasparin 8:24pm on Saturday, August 28th, 2010 
I like that it automatically shuts off after the wireless adapter is snapped into place on the back of the mouse. Amazing product from MS. very nice grip and handling. Both KB and Mouse has amazing response time. Liked all customizable keys.
bobone75 5:36pm on Tuesday, August 10th, 2010 
"I bought one of these and within two weeks I had to return it because the wheel stopped working. "great device, love the bluetooth connectivity; no dongle hassle. Well, has been good until recently.
scurlock666 1:45pm on Sunday, July 25th, 2010 
Quality is good, solid feel It has a very odd feel in your hand. The buttons seem to be in the wrong place relative to your palm.
fullgore 12:01pm on Wednesday, June 23rd, 2010 
The mouse pad on our old HP computer was not working and this MS optical mouse solved all our problems at a very low price. Comfortable Design. its a little small, i have big hands, but i like it Accurate Tracking,Works On Any Surface
jtballer 7:41am on Saturday, June 5th, 2010 
great product It works perfect with my MacBook Pro. There are just no manual or instructions in the box. There is a button on the bottom of the mouse. Inexpensive and Quick Delivery Product shipped Fed Ex, so it was easy to track the delivery date. It also arrived within 2-3 days of shipping. An Unsatisfying Tactile Experience From a technical perspective, this wireless bluetooth mouse is excellent.
sas 9:38am on Saturday, April 17th, 2010 
This is a great mouse - the size is just perfect - the bottom of my palm sits on the desk very nicely when the fingers are on the buttons.

Comments posted on are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.





Cal. 3M22A

We would like to announce that the power resource and other parts for Cal. 3M21A/3M22A are changed to new ones which lead to enhanced performance and longer duration. Notes: q When repairing Cal. 3M21A/3M22A watches, please be sure to refer to this supplement together with PARTS CATALOGUE/TECHNCIAL GUIDE Cal. 3M22A issued in July 1994. q When the new rechargeable battery unit is installed into the movement, please note that the original capacitor clamp should not be used. If the original clamp is used with new rechargeable battery unit, it could lead to short circuit or damage the movement. To avoid disorder, please order rechargeable battery unit and rechargeable battery clamp in a set by parts code 3027 3MZ (3027 3MZ contains rechargeable battery unit and rechargeable battery clamp.) q After the new rechargeable battery unit is installed, the indicator display for duration of charge will change. Please see below chart of Comparative matrix between original and new power resource. q In and after September 2001, original capacitor unit will be discontinued and no longer available. New parts in a set (rechargeable battery unit and rechargeable battery clamp) will be supplied to you if you order the old capacitor by parts number No. 3029 011.
[INFORMATION: Comparative matrix between original and new power resource]
Indicator display and Duration (Approx.) Original capacitor (3029 011) 5 seconds 10 seconds 20 seconds 30 seconds Indicator display and Number of swings (Approx.) * 5 seconds 10 seconds 20 seconds 30 seconds 3 hours 1 day 2 days 3 days 100 times 500 times 800 times 1,200 times New rechargeable battery unit (3027 29N) 3 ~ 10 hours 10 hours ~ 1 day 1 ~ 40 days 40 days 100 times 200 times 700 times 16,000 times
* The number of swings may differ according to the way of swinging.


Part name
Original parts code (Capacitor unit)
New parts code *3027 29N (Rechargeable battery unit)

Notch for discrimination

K.E.S.U. (Capacitor unit / Rechargeable battery unit)
SL621 is written on the other side. 4225 551
MT616 is written on the other side. *(This cannot be used with the original capacitor unit.)
Capacitor clamp / Rechargeable battery clamp

Depressed line

This part is used in common for Cal. 3M6 Series. * When you change the original capacitor to new rechargeable battery unit, the clamp is also required to be changed. Please order them as a set by parts code 3027 3MZ to avoid confusion. (3027 3MZ contains rechargeable battery unit and rechargeable battery clamp.) * Each parts also can be supplied separately by each parts code.


Printed in Japan



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