Strikes and Spares SASM80 Guide

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1. The SASM80 - General description
The SASM80 watch movement is a direct replacement for Ragen®/ Riehl®LED watches. It
substitutes Synchronar®Mark III and Sunwatch® modules and also fits all other Riehl cases.
The SASM8X series can be purchased in several versions to cover the different constructions
and layouts of modules which were produced from 1972 to 1984.
•Mark III / Sunwatch®replacement (SASM80)
•Mark I replacement with MAN3A display (Dot-Display, SASM81)
•Mark II replacement (SASM82)
As known from other watch movements produced by StrikesAndSpares Semiconductor the
SASM80 is built with original parts from disassembled Riehl movements. The plastic carrier,
the solar cell, the quartz crystal, the reed switches and the display is swapped to the new
SASM80 which then comes with the features and the look of an original movement.
2. The assembled module
Fig. 1: components of the SASM80 module

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3. Features of the module
The SASM80 module contains a time feature with an additional continuous seconds display.
Moreover the watch has date and day of week display. The internal calendar comprises a leap
year feature so that every 4th year includes a 29th of February. In case the original quartz
crystal gains time for example due to aging there are two trimmers for a time correction. The
fine trimmer is located on the lower right of the module. In addition the time can be adjusted
through the new software trimming feature. All modules will be delivered unadjusted.
The control and the features of the SASM80 module exactly match the options of the Mark III
movement. There are four functions which have been programmed supplementary. For
example the day of week can be displayed in three different languages (English – German –
French). The date display can be switched to the European readout of the form DD:MM, but
is set to MM:DD by default. Leading zeros show up in date and time display if chosen. The
module is able to operate with a AM / PM and military (24h) time display.

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4. The time feature
Slide the right slider bar away to show the time. For a continuous second display slide both
bars towards and release them again. Push the left or right slider away to switch the
continuous seconds display off with the beginning of the next minute.
Fig. 2: time display Fig. 3: continuous seconds
5. The date feature
Slide the right slider bar toward and release it display the date. Month and day will show up.
Fig. 4: date display

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6. The DOW feature
To activate the day of week (DOW) feature, slide the left bar towards you to display DOW
and seconds.
Fig. 5: DOW and seconds display
7. The leap year and frequency trimming feature
The leap year will come up in the display once the left slider is pushed away. The leap year is
displayed on the most left digit, the value of the time correction including its algebraic sign
follows on the next three digits.
Fig. 6: Leap year and time correction

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8. Fine adjustment with on - board trimmer
Theoretically the modules are programmed in a way that the time computing is proceeded
without tolerances. However a deviation of time can occur because of climatic differences in
temperature, habits of the owner and the aging of electronic components. There is both
hardware and software compensation available for modules which are running out of
specification. A fine tuning (on board trimmer) can be done with a special screwdriver. Please
mention, that there is no entitlement to a guarantee in case of damage through the customer.
Fig. 7: solder side with trimmer
9. How to set time and date and how to trim the frequency
The date, the DOW, the time and the software trimming is achieved with the side sliders. We
suggest starting with the DOW. Continue with the day, then month, hour and finish with the
minutes. The software trimming feature is optional. We recommend beginning with time
adjustments after one week of operation.
To change the DOW slide the left slider bar towards. Hold on. After a delay of four seconds
push the right slider backwards. The day of week increases. Release both sliders at the desired
day.

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Slide the right slider towards and hold on for at least four seconds to change the date. You can
use the left slider to advance month and day. Pull the slider to increase the month, push it
away to set the day. If the month turns from December to January the leap year is also
incremented. The leap year number „4“ indicates, that there will be a 29th of February.
To set the time slide the right slider bar away and hold on. You can advance minutes and
hours with the left slider after a delay of four seconds. Slide the bar towards to increment the
hour, move the left slider back to set the minutes. The time computing remains at :00
seconds until the right slider has been pushed to show the time and to start the time counter.
The software trimming feature may be used to adjust the time counting. To change the
correction parameter slide the left slider bar away and hold on. After fours seconds move the
right slider backwards to diminish the value of the correction parameter, pull it towards
effectuates an increasing value of the parameter. Example: If the watch gains half a second
per day, choose the correction value -0:5 (minus 0,5). In case the watch is running too slow
and looses one second a day, choose the correction value 1:0.
Fig. 8: Setting of the correction parameter

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10. Additional features of the SASM80
Activate the DOW feature with the left slider and hold on for at least four seconds. Slide the
right slider bar towards you to get access to the additional features menu. Release both bars. .
The left slider is needed to choose settings within a menu item. Push the left slider away to set
a feature, pull it towards to continue with the next item.
Choose the display of the date with the first menu item. Select „US“ for a standard MM:DD
display of the date. The setting „EU“ will display the date in days, followed by month
(DD:MM), just like people are used to in Europe.
Choose between 12 and 24 hour display in the next menu item. Once chosen 12h display the
time display will show 11:32 at 23.32 for example or vice versa.
Choose the language of the day of week with the following feature. You can set the language
to „EN“ (english) „DE“ (deutsch/german) and „FR“ (french) which then will display the
short form of the DOW in the selected language.
The module can display leading zeros when activating time and date feature. If (:+0) is chosen
in the next menu item, the date will be shown in the form 03:01 on 1st of March (instead of
3:1). Deactivate leading zeros in that you set the menu item to (--:).
Move the left slider towards you for a last time to quit he additional feature menu.

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11. Rechargable batteries
StrikesAndSpares Semiconductor suggests using two Varta NiMh accumulators. Either type
V80H which originally has been installed in the watch or type V40, a smaller version of the
V80H. We recommend to use V40H in watches with black Synchronar plastic backs and
V80H in early versions with the red back and Monsanto MAN3A dot displays. The form of
the V80H has been slightly changed during the years, so that the batteries do not properly fit
the black bottoms anymore. The batteries should be exchanged in a 5 year time period.
12. Warranty
We deliver all SASM 80 modules with a full one year warranty. The appointed date of the
warranty is the indicated date of the invoice. Please keep this invoice for your own records
and as a document in case of a defect on the module which is covered by the warranty.
13. Assembling of module and case
The mounting of batteries and module in original plastic housings can be accomplished
through StrikesAndSpares Semiconductor. We use an elastic glue to stick top and back of the
housing together so that the parts can be unsealed again to service the batteries.
Fig. 9: Pads for ground and battery - plus

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We do not seal modules and batteries in general, because the sealing prevents a battery
change to be done by the customer. It is physically impossible to run watches without an
exchange of the batteries for an unlimited time. A disadvantage adds up in a housing which is
not assembled in a way to be water resistant. But it is immune to splash water indeed. On
explicit customer request and against our technical comprehension StrikesAndSpares
Semiconductor will seal your module with a silicon gel.
14. Software: Versions and updates
As all active SASM modules the SASM80 series also have a software version indicator. The
version indicator will show up in the display when batteries are replaced. `SAS will appear on
the display, followed by the software release and the module number, for example b:80.
The different software releases are arranged by the corresponding letter and are used in the
manner below. All SASM8X modules can be updated to the latest release, which is 29, 90€
per module.
E: Initial release
A: 1st software modification
b: 2nd software modification
c: 3rd software modification
d: experimental release
F: 4th software modification
H: 5th software modification