1930s Longines Rare Cal.15''' One-push Chronograph Porcelain 3color&Scaled Dial in 18K Yellow Gold

Manufacturer Longines
Model Chronograph
Year of Manufacture 1930s
Reference no. ---
Product no. B-10864

¥3,080,000 (with tax)

¥2,800,000 (without tax)

Manufactured in the mid-1930s, this is a rare oversized chronograph with a 40mm yellow gold case, featuring a valuable Cal.15 movement. It boasts a porcelain dial with a three-color scale design. This model was produced for only a brief period, from around 1933 to 1935, transitioning from the Cal.13.33 to the Cal.13zn movement. It is based on the Valjoux GHT base Cal.15''' movement. The porcelain dial with its unfading three-color scale design retains the beautiful dial aesthetics of the Cal.13.33. The 18k yellow gold hinged case, with a double case back (both inner and outer backs made of 18k gold), bears unique serial numbers engraved on both the inner and outer backs, indicating its transition period and recognition at the World's Fair with 11 awards, symbolizing its multifunctional capabilities as a computer at that time. This timepiece represents a rare treasure that allows one to savor the unique world of vintage Longines, which has received high acclaim worldwide.
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Item details

Serial no. 5,211,***
Caliber 15'''
Movement no. 5,211,***
Movement type Manual winding
Material 18K Yellow Gold
Case size 39.5mm
Case type Snap-back,Non-Waterproof
Dial Original
Type of Indices Print
Belt Non-original (fix,lug width: 20mm)
Evaluation case 93%
Evaluation dial 93%
Evaluation mov 93%
Condition 4.5
Rarity 5

Other details

Case: Minor scratches and age, but retains original shape and volume, as well as hallmarks. There are no loose hinges.

Dial: There are some cracks that are not visible at first glance, but the dial is very clean and retains its luster and prints clearly.

Movement: The chrono function is good and the accuracy is around 40 seconds per day.