Longines ref. 6393-6

Longines ref. 6393-6 is a classic Swiss vintage watch with manual winding, dating from 1959. The model combines a gold-plated stainless steel case, hesalite crystal, screw-down case back, and an in-house Longines Calibre 23.ZS movement with a central second hand.

The presented timepiece has a case diameter of approximately 34 mm without the crown and maintains the elegant proportions typical of watches from the late 1950s. It is an interesting model for those looking for a classic vintage Longines with an in-house movement.

Movement

At the heart of the watch is the Longines Calibre 23.ZS – a mechanical movement with manual winding, introduced by Longines after World War II. It is a construction valued by vintage watch enthusiasts and an important part of the brand's post-war movement development history.

Calibre 23.ZS features a central second hand, 17 jewels, operates at a frequency of 18,000 vibrations per hour, and offers approximately 44 hours of power reserve. The movement has a diameter of approximately 23.69 mm, a height of approximately 4.6 mm, and a lift angle of 46 degrees.

The movement is equipped with an anti-shock system and anti-magnetic protection. These were important features for higher-class watches of that period.

Case and Dial

The case is made of stainless steel and then gold-plated. It has a classic, round shape and elegant proportions characteristic of watches from the 1950s.

The case diameter is approximately 34 mm without the crown, the width with the crown is approximately 36 mm, the thickness is approximately 9 mm, and the lug-to-lug dimension is approximately 38 mm. The watch sits well on the wrist and maintains a subtle, classic character.

The watch has a screw-down case back and an original, unbranded crown. The crystal is hesalite / acrylic, typical for historical watches. The dial has a classic layout with a central second hand, resulting from the use of the 23.ZS movement.

Strap or Bracelet

The watch is sold in the configuration shown in the product photos. The detailed appearance of the strap or bracelet, their condition, and fit are presented in the photos.

Condition, Set, and Warranty

The watch is a used, vintage item. It may show natural signs of age and use. The detailed visual condition is presented in the product photos, which are an integral part of the description.

The watch is sold with the set visible in the product photos.

The product is covered by a 100-day Dial-House warranty for the correct operation of the mechanism, excluding mechanical damage, water damage, improper use, natural wear and tear of consumable components, and interference by third parties.

Key Information
Brand: Longines
Model: ref. 6393-6
Reference: 6393-6
Year: 1959, according to serial numbers
Movement: Longines Calibre 23.ZS
Movement type: mechanical, manual winding
Second hand function: central second hand
Number of jewels: 17 jewels
Movement size: 10.5'''
Movement diameter: approx. 23.69 mm
Movement height: approx. 4.6 mm
Power reserve: approx. 44 hours
Operating frequency: 18,000 vibrations per hour
Lift angle: 46 degrees
Anti-shock system: yes
Anti-magnetic protection: yes
Case: stainless steel, gold-plated
Case shape: round
Case diameter: approx. 34 mm without crown
Width with crown: approx. 36 mm
Case thickness: approx. 9 mm
Lug to lug: approx. 38 mm
Case back: screw-down
Crown: original, unbranded
Crystal: hesalite / acrylic
Strap or bracelet: as per product photos
Set: as per product photos
Warranty: 100-day Dial-House warranty
Condition: used, vintage