t is immediately recognisable by its two crowns and internal rotating bezel. The new Longines Legend Diver is now resurfacing with a 39mm diameter, faithful to the original 1959 model from which it takes its inspiration. This authentic tool-watch is available with a black or blue dial.

Longines has always associated its name with the world of sport and exploration, whether on land, in the air or under the sea. As early as 1937, the brand launched the very first chronograph with water-resistant push-pieces, which it patented in 1938, followed by its first underwater watch in 1958. One year later, Longines developed a watch specifically designed for underwater exploration. This came with a revolutionary Super-Compressor case with internal rotating disc and two screw-down crowns: and thus, the iconic design of the Longines Legend Diver was born.

Today, this legendary tool-watch has expanded into a whole line of new models, revamped both inside and out. Presented in a completely redesigned 39mm case, the new Longines Legend Diver is certified as a Divers’ Watch (ISO 6425) with a water-resistance up to 30 bar / 300 metres. The entire watch is also chronometer-certified by COSC (Contrôle Officiel Suisse des Chronomètres), an independent control body. During the certification process, the watch head, with the movement running in the case, is tested for 15 consecutive, uninterrupted days in different positions at three temperature levels to guarantee its precision.

The model is driven by an exclusive Longines L888.6 calibre equipped with a silicon balance-spring and innovative components, offering a magnetic resistance ten times greater than the ISO 764 benchmark standard. This extremely precise self-winding mechanical movement has a power reserve of up to 72 hours.

The instantly recognisable dial has no date and is available in black or blue lacquer. It is topped by a domed sapphire crystal with black metal plating and multiple layers of anti-reflective protection on both sides. The hours are marked by elongated indexes and raised luminescent Arabic numerals. The new rhodium-plated and polished arrow-hands, coated with Super-LumiNova, mark the time with optimum visibility in all circumstances, day and night.

Another emblematic feature of this model is the internal bidirectional rotating bezel for measuring dive time. The bezel’s position inside the case protects it from handling and accidental shocks that could disrupt its settings. The screw-down crown at 2 o’clock activates it on a graduated 60-minute scale, which is located on the case flange and capped at 12 o’clock with a luminescent triangle symbol.

The sleek new stainless steel case features alternating polished and satin-brushed surfaces. The collection’s symbol, a diver, is stamped on the watch’s perfectly angled screw-down case back.

These models are available with a brown leather strap, a blue NATO strap and a new stainless-steel bracelet with a double-safety folding clasp.

Timeline of a legendary model

1959

Longines Diver watch with Super-Compressor case, ref. 7042. Two-piece, 42mm case with screw-down back; water-resistant up to a depth of up to 12 bar (120 m). Self-winding mechanical Longines movement, calibre 19AS. Longines introduces an internal bidirectional rotating bezel graduated over 60 minutes.

1963/1965

Longines Diver watch with Super-Compressor case, ref. 7594. 42mm case; water-resistant up to 12 bar (120 m), then 20 bar (200 m). Automatic winding, calibre 290, internal rotating bezel.

1971/1972

Longines watch with Super-Compressor case designed for Royal Australian Navy divers. Water-resistance improved up to 30 bar (300 m). Automatic winding, calibre 633.1, date display, internal rotating bezel.

2007

Longines Legend Diver ref. L3.674.4.56.2. The iconic timepiece resurfaces under the name Longines Legend Diver. 42mm case; water-resistant up to 30 bar (300 m). Automatic winding, calibre L633, internal rotating bezel.

2017

Longines Legend Diver ref L3.774.1.50.2. The model is now adorned in bronze, while retaining the features that have made it such a success. 42mm case; water-resistant up to 30 bar (300 m). Automatic winding, calibre L888.5, internal rotating bezel.

2023

In 2023, the Longines Legend Diver line marks a return to its roots while benefiting from today’s technical and aesthetic advances. 39mm case; water-resistant up to 30 bar (300 m). Automatic winding, exclusive Longines calibre L888.6, internal rotating bezel.

TECHNICAL SPECIFICATIONS

REFERENCE NUMBERS
L3.764.4.50.0/6 L3.764.4.90.2/6

CALIBRE
Self-winding mechanical movement
Exclusive Longines calibre L888.6
Entire watch officially COSC certified chronometer
111⁄2 lines, 21 jewels, 25,200 vibrations per hour
Magnetically resistant, with silicon balance-spring (ISO 764)
Power reserve: up to 72 hours

FUNCTIONS
Hours, minutes, seconds

CASE
39mm, thickness 12.70mm
Round, stainless steel
Angled screw-down back and two screw-down crowns
Diver symbol stamped on the case back
Domed sapphire crystal (box) with black metal plating and multi-layer anti-reflective coating on both sides
Internal bidirectional rotating dive bezel

DIALS
Blue or black lacquer
Indexes interspersed with Super-LumiNova squares
Raised Arabic numerals accentuated by luminescent rectangles

HANDS
Rhodium-plated and polished, with Super-LumiNova

WATER-RESISTANCE
Up to 30 bar (300 metres)
tested with +25% overpressure (as required by ISO 6425)

BRACELET AND STRAPS
Stainless steel with double-safety folding clasp
Blue NATO with steel tongue buckle on model L3.764.4.90.2
Brown leather with steel tongue buckle on model L3.764.4.50.0