Selectron Ref. C/D-001

OLLECH & WAJS - SELECTRON - LOGARYTHMIC SLIDE RULE Ollech & Wajs, Zurich, Selectron, Ref. C/D-001. Made in the late 1960s. Interesting and unusual stainless steel wristwatch with date. Three-body, brushed and polished, revolving bezel, snap-on case back. Black, luminous arabic and baton indexes, outermost slide-rule, aperture for the date. Luminous baton hands. Cal. 96-4 rhodium plated, 17 jewels, straight line lever escapement, mono-metallic balance, self-compensating flat balance spring, shock absorber. Notes Dial, case and movement signed. DIAM. 40 mm. THICKNESS 10 mm. To be sold without reserve