Watch Specifications:
Movement: New Old Stock Buren Calibre 12 automatic movement.
Luminance: Tritium. Hour makers and 2 hands
Dial: Arabic numerals. Seconds and 2 Chronograph subdials. Slider rule.
Date: Slowset date at 6 O'clock
Case: Stainless Steel case
Crown: Push in with 2 chronograph pushers
Case Back: Screw in stainless steel
Bezel: Stainless steel slider rule
Crystal: Acrylic crystal
Power Reserve: ~40 hours
Dimensions: 47mm excluding crown, 50mm including,
48mm lug to lug and 15mm thick
Water Resistant: 30m
Strap: Leather strap
Picture:

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The Aviation series by Ollech & Wajs are made up of New Old Stock parts of one of the biggest and best watchmaker of yesteryear. The Aviation 6081 uses the legendary Buren Calibre 12. The parts are made using NOS Breitling parts. That is why it has a close resemblance to the old school Breitling. Back in the 1980s when Breitling was liquidated, Ollech & Wajs bought most of the parts, machines and designs. The parts between the Breitling and Aviation series are interchangeable.
The slider rule computing dial and bezel allows users to calculate speed, distance and even do mathematical calculations. An instruction booklet will be provided.