The Black Watch kit
Isn’t that how things should be?
At $29.95, it’s
*practical—easily built by anyone in an evening’s straightforward assembly.
*complete—right down to strap and batteries.
*guaranteed. A correctly-assembled watch is guaranteed for a year. It works as soon as you put the batteries in. On a built watch we guarantee an accuracy within a second a day—but building it yourself you may be able to adjust the trimmer to achieve an accuracy within a second a week.
The Black Watch by Sinclair is unique. Controlled by a quartz crystal . . . powered by two hearing aid batteries . . . it’s also styled in the cool prestige Sinclair fashion: no knobs, no buttons, no flash . . . just touch the front of the case to show hours and minutes and minutes and seconds in bright red LEDs.
The Black Watch kit is unique, too. It’s rational—Sinclair have reduced the separate components to just four. It’s simple—anybody who can use a soldering iron can assemble a Black Watch without difficulty. From opening the kit to wearing the watch is a couple of hours’ work.
Complete kit $29.95! The kit contains
1. printed circuit board 2. unique Sinclair-designed IC 3. encapsulated quartz crystal 4. trimmer 5. capacitor 6. LED display 7. 2-part case with window in position 8. batteries 9. battery-clip 10. black strap (black stainless-steel bracelet optional extra-see order form) 11. full instructions for building and use. All you provide is a fine soldering iron and a pair of cutters.
2000-transistor silicon integrated circuit
Each advertisement is a 100% original magazine ad – not a reprint.
Ad measures approximately 8.5″ x 11″ and is in excellent condition.