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1970 Ollech & Wajs Precision Chronographe with Valjoux 72

Ollech & Wajs was a small company founded in the mid-50s in Zurich by Albert Wajs and Joseph Ollech. Despite the fact that the venture wasn't  really big, gentlemen achieved notable quality and recognition and then supplied US Army with military watches (including chronographs for aviation). This particular piece from the late 1960s has a lot of details worth of mentioning. 

First of all the movement ticking inside - it is legendary Valjoux 72, a high-grade chronograph that was also used in many iconic timepieces: Rolex Daytona, Heuer Carrera, Universal Geneve Compax etc. It is hidden in massive, yet very well-balance stainless steel case with crew-down caseback. The case remained unpolished and even today boasts with extremely sharp edges and original brushed finishing. The other special thing is the dial: it has amazing deep blue-purple color. It's quite hard to capture this metallic tone which changes from sky-blue to deep-violet depending on the light. More than that - just take a look at these oversize sub-dials! A true time-capsule with tons of character.

Manufacturer: Ollech + Wajs, Switzerland
Model: Precision Chronograph
Reference: 935 
Type: Manual-winding chronograph
Year of production: ca.1970 
Case type: 3-body, with screw-back, mixed satin and mirror finishing. Rotating bezel in outstanding condition. 
Case material: Stainless steel
Case measurement: 38 mm (diameter of the bezel) / 58 mm (lug-to-lug) / 20 mm (between lugs)
Case serial number: n/a
Case back: Screw-down, signed "Swiss Made / Waterproof / Antimagnetic / Incabloc / Stainless Steel" on the outer side.
Crown/pushers: Original steel fluted crown, round "mushroom" pushers.
Crystal: Domed plexiglass crystal.
Movement type: Precise manual-winding chronograph
Movement model: Famous Valjoux 72 signed ‘Ollech & Wajs’ and ‘Swiss’. 17 Jewels, 18000 A/h, 44 hours of power reserve.
Movement serial number: n/a
Dial: Semi-glossy purple-blue dial decorated with white printed tachymeter and telemeter scales on the outer perimeter, long tritium hour markers. Signed "O + W Precision Chronographe" at 12 o'clock. Signed 'T Swiss Made T' at 6 o'clock. Minutes counter's subsidiary dial at 3 o'clock, hours counter's subsidiary dial at 6 o'clock and small seconds subsidiary dial at 9 o'clock.
Hands: Wide silver luminous (tritium) hour and minute hands, "lollipop" orange chrono sweep seconds hand. White counters' hands.
Case condition: 1 (mint), Unpolished, exceptional condition with minor traces of use.
Movement condition: 1 (mint) only original parts, adjusted and keeps good time. All functions work properly. Service history is unknown.
Dial/hands condition: 1 (mint) Original dial in outstanding condition showing extremely light "stardust" aging of the surface which is practically invisible in the daylight. Perfect condition of tritium markers.
Overall condition: 1 (mint)
Delivery set: The watch comes with blue "racing" leather strap and suede watch holder. It also comes with our company’s warranty certificate and general terms and conditions.
Warranty: 1-year technical warranty

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Sizing Product

Measuring a watch

It is always crucial to understand the size of the watch, especially when it comes to vintage watches which are generally considered as too small in comparison with what watch industry offers today. For example, the original Patek Philippe Calatrava introduced in the 1930s was only 31 mm in diameter, while today's classic Calatrava is 39 mm. When you think about 8 mm, it doesn't seem to be a big difference, but believe it is.

In our condition reports we normally disclose three most important parameters as follows: diameter without crown / lug-to-lug length / lug width. 

Diameter without crown

It is, so far, the most important measurement to understand the size of a regular round-shaped watch.It helps you to understand proportions and overall look of the watch. It is important to consider width of the bezel and color of the dial, because certain combinations may make the watch look bigger, while some other smaller. It is all very individual, however there is common understanding:

Lug-to-lug width

This parameter will help you to understand whether the watch is comfortable for wearing. You should compare lug-to-lug width with the width of your wrist, and if lug-to-lug width is smaller or equal, then this watch shall be comfortable.

Lug width

This measurement is defining what size of strap you need for the particular watch. Depending on era and manufacturer you can find watches with lug width between 14 mm and 24 mm. Most common sizes are 18 mm and 20 mm.