Ollech & Wajs Computer

The O&W Computer is a true 24 hour watch with a bezel for a second time zone and a simplified version of an aviation E6-B style slide rule. The slide rule is operated by the crown at 4 o'clock. The crown at 2 o'clock sets and winds the watch. The watch is all stainless steel and the bezel looks is base metal.

The movement is a Fontainemelon FHF caliber 72, also used by Mr Wajs on the famous Early Bird. It is a 17 jewel unadjusted manual wind quality movement.

The dial is a true 24 hour dial with a 24 hour bezel with an E6-B style slide rule.
More informations how to use: https://en.wikipedia.org/wiki/E6B
The crystal is standard plastic. As expected from any dial with a slide-rule, it is fairly busy, but not too bad. The dial has the 12:00 hour (noon) at the top. It also has the upper half white and the lower half black to indicate day and night time. The bezel is bi-directional and you can use to set a second time zone.

The case is all stainless steel. Its diameter is about 39 mm and measures 49 mm from lug to lug. It is very comfortable to wear.The back presents a  surprise because it has a globe etched with meridian lines which adds a nice touch to the watch.

Description:

Case:           stainless steel – 39mm without crown
Dial:             silver/black – day & night indication
Bezel:          anodised steel, blue/white pepsi color, GMT function, bi-directional
Inner Bezel: operated by the crown at „4“
Hands:        Tritium lume
Glass:          Plexi
Movement:  manual winding, Cal.FHF 72, 24 hours execution
Strap:           new „LORICA“ strap

Condition:

Watch is in stunning condition, it’s a  NOS piece, never worn, all functions are given, movement has got a complete service
by a professional watchmaker in May 2020. It comes with the service proof.