Meylan Decimal Chronograph, Swiss, Anti-magnetic Ref. 813-65. Made in 1960's. Fine, water resistant, stainless steel wristwatch with round button chronograph, registers and red decimal scale.
Case: Two-body, polished, lapidated lugs, screw down caseback.
Dial: Silver with applied steel Arabic and dart indexes, guilloché subsidiary dials for the seconds and the 30-minute and 12-hour register, inner 1/5th seconds divisions, outermost red decimal scale. Steel baton hands.
Movement: Lemania 2520, rhodium-plated, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating blued balance spring, index regulator.
Diameter: 36mm Thickness: 12mm
More about Meylan:
Meylan Corporation, an American company has been supplying the highest quality time keeping and measurement devices to the Educational, Industrial and Scientific market for nearly 100 years. The company was founded by a Swiss citizen who was importing high quality time instruments to the US.
A Decimal chronograph is are regular chronograph with an outer scale graduated in 10 base, instead of a tachymeter or a telemeter. This scales were use for lab work or other technical needs. The watch has an incredible dial with great beautiful tritium markers above applied darts and a red decimal scale. Fitted with a Lemania 2520 (of Omega 321 fame), it is an affordable way to acquire a famous chronograph movement seen in the rarest and most prestigious brands from Patek Philippe to Breguet.