Longines 13ZN - 12 Central Minutes Chronograph SS INCREDIBLY RARE

Longines Vintage 23086 13ZN-12, 13ZN Central Minutes Chronograph, very rare steel case on a leather strap, gorgeous silvered dial is in beautiful original condition, blued hands, luminous Arabic numerals, acrylic crystal, luminous hands, central blued steel seconds hands, central red hand for chronographic minutes, outer five minute divisions and inner railway minute divisions, sunken engine-turned subsidiary dial at 9:00 for constant seconds and 12 hours register at 3:00, stepped bezel, screw-down solid caseback, very sharp stepped lugs, circa 1940's, diameter: 39.5mm, thickness: 14mm. This is an extremely rare watch in excellent condition with European Watch Company Pouch and 6 month warranty.

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Reference:

13ZN-12

Movement:

Manual

Material:

Stainless Steel

Diameter:

39.5MM

Thickness:

14MM

Condition:

Like New

EWC#:

23603

More about 13ZN - 12 Central Minutes Chronograph SS INCREDIBLY RARE

This is an extremely rare, vintage steel Longines 13ZN-12 Chronograph, ref. 23086. It is thought that only a few hundred watches of this type were produced in different cases during the 1940's. It has a leather strap with a stainless steel tang buckle, and an acrylic crystal. It has a solid screw-down case back, and round chronograph push buttons. The 39.5mm diameter three-body case, and downturned lugs are polished/brushed. The silvered dial is beautifully original with painted luminous Arabic hour markers, outer five minute divisions and inner railway minute divisions. It has luminous, blued steel skeleton hands with a blued steel center sweep chronograph seconds hand and a red chronograph minutes hand. There is a constant seconds subsidiary dial at the 9 o'clock position, and a 12-hour chronograph register at 3 o'clock. The 14mm thick case, dial, and movement are all signed. The mechanical manual winding movement in this watch is the Longines caliber 13ZN-12, which is the famous 13ZN movement reworked to include the complicated extra feature of a central minute counter. It was constructed with 17 jewels, a straight-line lever escapement, and a bi-metallic balance. It includes a self-compensating Breguet balance spring, and index regulator. The mechanism oscillates at a frequency of 18,000 vph (2.5 HZ). This is the Holy Grail of Longines chronographs and this example is in incredible original condition.

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