Mathey-Tissot 1940s
Rare Square Case Baby-Size Chronograph, Valjoux 69


Mathey-Tissot Square Baby-Size Chronograph Valjoux 69, ca.1940s
■Model/Year : Mathey-Tissot Rare Square Case Baby-Size Chronograph, ca.1940s
■Movement : Signed manual winding 17 jewels Valjoux Cal.69 (10.5 Lignes, diameter 23.35mm, height 5.65mm, 17 jewels, 18000 BPH)
■Functions : Hours, minutes, subsidiary seconds; 30 minutes two-registers chronograph.
■Case : Stainless steel case (STAYBRITE) with snap-on back.
■Crystal/Dial : Plastic crystal. Factory original (not repainted) silvered dial; evenly aged in great condition for its age. The hands are also all original to the watch.
■Diameter(w/o crown) is approx. 27x27mm; Lug to Lug 35mm; Lug width 18mm.
■Strap/Band : Brown alligator leather strap.
■Running Condition : Watch in good running condition. All chronograph functions work properly; chrono hands can fly back to zero correctly.
■Overall condition : Excellent for its age.

As early as 1939, Valjoux introduced the Calibre 69, which is considered the finest chronograph movement challenged to the miniaturization that small enough for watches worn by women. This is the extremity of smallest complicated chronograph movement that ever made by Valjoux and only produced in very few amount. The mechanism the same as caliber 23 system, the column wheel, being carrying arm system, the size surprised to be so small only 10.5 lignes (23.35mm) in diameter.

Extremely rare Mathey-Tissot Baby-Size Chronograph, Lovely smaller size 27x27mm in dial face, square case with hooded lugs, all original and overall in great condition.

** pic6: Mathey-Tissot & Heuer Valjoux 69 (10.5 lignes) Baby-size Chrono compare with Valjoux 72 (13 lignes) Autavia.