Longines - Heritage - L2.745.4 - Men - 2010-2020

Longines Heritage L2.745.4 – 40 mm – automatic chronograph – silver-toned dial – leather strap – caliber L651

A characterful Longines Heritage chronograph with reference L2.745.4, housed in a 40 mm stainless steel case. This model combines a classically inspired design with an automatic chronograph and a striking silver-toned dial featuring large Arabic numerals.

The combination of blued hands, three recessed subdials, date display and classic chronograph pushers gives the watch a pronounced vintage look. The watch is fitted on a black leather strap; this strap is not original. The Longines-signed deployant clasp is preserved.

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Basic information

Brand: Longines
Collection: Heritage
Reference: L2.745.4
Case diameter: 40 mm
Case material: stainless steel
Movement: automatic mechanical
Caliber: Longines L651
Functions: hours, minutes, central seconds, date and chronograph
Dial: silver-toned
Crystal: sapphire crystal
Strap: black leather strap, not original
Clasp: Longines-signed deployant clasp
Frequency: 28,800 excursions per hour

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Important details

The Longines Heritage L2.745.4 stands out for its classically styled chronograph layout and clear references to historical sport and pilot chronographs.

Notable features include:

- Large stylized Arabic hour markers
- Silver-toned dial with brushed finish
- Blued central hands
- Three contrasting light subdials
- Chronograph with central chronograph second hand
- 30-minute counter
- 12-hour counter
- Small seconds
- Date window between 4 and 5 o’clock
- Outer minute scale with Arabic five-minute markings
- Classic round chronograph pushers
- Longines-signed crown

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Year of manufacture

Estimated year of manufacture: circa late 2000s / early 2010s.
The Heritage line from this period blended designs from the historic Longines archive with modern automatic movements and contemporary case constructions.
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Case

The round case is made of stainless steel and has a diameter of 40 mm.

The predominantly polished finish gives the watch a classic look. The long, gently curved lugs complement the vintage character of the design.

On the right side are the crown and two separate chronograph pushers. On the opposite side of the case is a recessed corrector.

The case shows clear signs of wear. The polished surfaces have hairlines, scratches and some localized heavier superficial wear. Wear is also visible around the case flanks and at the lugs’ transitions. This is in line with a worn piece.

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Dial

The silver-toned dial is one of the most recognizable elements of this execution.

The central zone has a subtle brushed texture. Large outlined Arabic numerals give a sporty look, while the fine scales around the dial lend the design the character of a classic instrument chronograph.

The blued hour and minute hands have a light inlay and contrast strongly with the silver background.

Below 12 o’clock are the Longines logo and the winged hourglass. Above the lower subdial is “AUTOMATIC”.

The three subdials are neatly laid out on the dial:
- Small seconds at 9 o’clock
- 30-minute counter at 3 o’clock
- 12-hour counter at 6 o’clock

Between 4 and 5 o’clock is the diagonally placed date window.

The dial and crystal present themselves nicely, with a clear and easy-to-read appearance.

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Chronograph

The watch features a full mechanical chronograph function.

The top button is used to start and stop the chronograph. The bottom button resets the chronograph hands.

Elapsed time is indicated by the central chronograph second hand in combination with the 30-minute and 12-hour counters.

Thus, the watch can mechanically record longer time intervals in addition to the normal time display.

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Movement

Inside lies an automatic Longines chronograph caliber from the L651 family.

Caliber: Longines L651
Type: automatic mechanical chronograph movement
Basis: ETA/Valjoux 7750 family
Frequency: 28,800 A/h
Hz frequency: 4 Hz
Chronograph: yes
Date: yes
Power reserve: circa 42 hours

The movement is automatically wound by the motion of the wrist and can also be wound via the crown.

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Timegrapher measurement

The performed measurement yields the following values:
Time deviation: 0 seconds per day
Amplitude: 288°
Beat error: 0.0 ms
Lift angle: 52.0°
Frequency: 28,800 A/h

These are very neat measurement values at the moment of testing. A timegrapher reading is always a snapshot and does not guarantee future accuracy or the full technical condition of the movement.

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Crown and pushers

The watch features a large knurled crown with Longines signature.
Above and below the crown are the two polished chronograph pushers. These round pushers suit the historical styling of the Heritage series.
On the other side of the case is a small recessed corrector.

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Case back

The closed stainless steel case back bears several engravings, including:
LONGINES HERITAGE
Reference L2.745.4
ALL STAINLESS STEEL
SWISS MADE

centrally there is also an individual numbering engraved.

The case back shows clear superficial scratches and signs of wear, consistent with regular wear and contact with the wrist.

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Leather strap

The watch is equipped with a black leather strap with crocodile pattern.
This leather strap is not original.
The strap shows clear signs of wear, including creasing, wear around the used holes and wear at the edges and lugs. The strap is still usable but has visibly worn character.
The mounted deployant clasp is Longines-signed and features the winged hourglass logo.
The current combination is suitable for a wrist circumference of about 19–20 cm, depending on which hole is used and the preferred wear method.

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Condition

Case: worn with hairlines, scratches and localized more pronounced signs of wear
Bezel: light to normal wear
Crystal: neat and clear impression
Dial: neat condition
Hands: neat condition
Crown: Longines-signed
Chronograph pushers: present
Case back: several superficial scratches and signs of wear
Strap: not original and clearly used
Clasp: Longines-signed deployant clasp
Movement measurement: 0 s/day, 288° amplitude and 0.0 ms beat error

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Overall condition

A fine Longines Heritage L2.745.4 automatic chronograph in worn but well-kept condition. The 40 mm steel case, silver-toned chronograph dial, large Arabic numerals and blued hands give this model a strong classic appearance.

The case and back show the usual signs of wear from use, while the dial and crystal present themselves neatly. The black leather strap is not original and shows clear signs of use. The Longines-signed deployant clasp is present.

Technically, in the moment snapshot, the watch shows a time deviation of 0 seconds per day, combined with an amplitude of 288° and a beat error of 0.0 ms.