Longines Tre Tacche 3864 Salmon Dial

his exceptional Longines “Tre Tacche” reference 3864 stands out with a particularly attractive salmon dial – a configuration that is extremely rare even among seasoned collectors.

The nickname “Tre Tacche” (Italian for “three notches”) refers to the characteristic case construction with a screw-down case back. This design represents one of the earliest solutions to improve water and dust resistance and was primarily developed for military use and professional environments. These cases were produced from the late 1930s through the mid-1940s.

With a diameter of 35 mm, this example is unusually large for its time – well above the typical size of around 30 mm. The elegant stepped case gives the watch a strong yet balanced presence on the wrist and remains highly sought-after among Longines collectors. Its authenticity is further reinforced by matching case numbers on the case back and beneath one of the lugs.

The true highlight, however, is the dial: the warm salmon tone combined with a center seconds layout is an exceptionally rare and desirable configuration. The evenly developed, honest patina adds remarkable depth and a distinctive vintage character. Particularly beautiful is the chapter ring, which gives the dial additional structure and elegance.

Inside, the watch is powered by the renowned Longines caliber 12.68N with center seconds, dating the piece to approximately 1942. The movement is in excellent condition and exemplifies the high level of watchmaking craftsmanship of Longines.

This outstanding collector’s piece is complemented by a rare Gay-Frères bamboo stainless steel bracelet from the 1940s. Lightweight, comfortable, and perfectly matched to the watch, it enhances the authentic vintage appeal and ensures a relaxed yet refined look on the wrist.

A hard-to-find 35 mm “Tre Tacche” with center seconds and such an exceptional salmon dial – a watch full of charm, history, and character that brings joy with every glance at the wrist.

Condition Report
Dial: Rare, original salmon dial – evenly aged with authentic patina – blue metallic hands – chapter ring – signed “Longines”.

Case: 35 mm stainless steel case – natural signs of wear – stepped bezel – full profile with well-preserved lugs – batch numbers on the case back matching the number behind the lug – screw-down “Tre Tacche” case back.

Movement: Manual-wind Longines caliber 12.68N operates reliable – timegrapher results: rate: -12s/day, amplitude: 190, beat error: 1.9.

Bracelet: Rare, original Gay-Frères Bamboo stainless steel bracelet from the 1940s - adjustable length.

Movement number: 6365xxx (1942)

Int.Exe.: 253645