Longines has given the Conquest Heritage Central Power Reserve a quieter kind of presence with a new opaline blue dial.
The watch builds on a model introduced in 2024, itself inspired by a 1959 Longines timepiece, and keeps the collection’s most distinctive feature in full view.
That feature is the central power reserve, an unusually elegant way to make a practical indication part of the dial’s visual rhythm.

At a glance
- Longines has introduced a delicately coloured opaline blue version of the Conquest Heritage Central Power Reserve.
- The watch uses two rotating discs for its central power reserve indication and is powered by the selfwinding Caliber L896.5.
- It comes in a 38 mm steel case with 50 metres of water resistance and is offered on a metal bracelet or grey alligator strap.
A heritage shape with a softer dial
The Conquest Heritage Central Power Reserve sits in a familiar Longines lane, where mid-century restraint is treated as a design asset rather than a limitation.
Its 38 mm steel case keeps the proportions compact and traditional, which suits a watch whose character depends on balance rather than spectacle.
The opaline blue dial is the main shift here, bringing a cooler, more atmospheric tone to a layout that remains clean and measured.

Silvered hour markers form the chapter ring, while the date is placed at 12 o’clock, a detail that gives the dial an ordered symmetry.
The central power reserve takes the lead
The defining element is the power reserve display, which is shown centrally through two rotating discs.
It’s a useful complication, but Longines has treated it as part of the composition rather than an added gauge at the edge of the dial.

The result is a watch that offers a constant reading of remaining autonomy without breaking from the calm, vintage-influenced personality of the Conquest Heritage line.
That quiet practicality is the appeal, especially for wearers who like mechanical information presented with discretion.
Caliber L896.5 and daily resilience
Inside is Longines’ selfwinding Caliber L896.5, a movement with an autonomy that can reach at least three days.
The caliber is fitted with a silicon balance spring and is designed to resist magnetic fields in line with ISO 764 criteria.
A sapphire crystal caseback reveals the oscillating weight, adding a mechanical view without disturbing the watch’s otherwise understated face.
Water resistance is rated to 50 metres, which places the watch in practical everyday territory rather than pure dress-watch delicacy.
Details & Specifications
| Brand | Longines |
|---|---|
| Model | Conquest Heritage Central Power Reserve |
| Case size | 38 mm |
| Case material | Steel |
| Dial | Opaline blue with silvered markers |
| Movement | Selfwinding Caliber L896.5 |
| Complication | Central power reserve indication using two rotating discs |
| Power reserve | At least three days |
| Water resistance | 50 metres |
| Magnetic resistance | Meets ISO 764 criteria |
| Caseback | Sapphire crystal back with visible oscillating weight |
| Strap or bracelet | Metal link bracelet with folding clasp or grey alligator strap with pin buckle |
The opaline blue Conquest Heritage Central Power Reserve is very much a Longines proposition, measured, technically useful and easy to wear.
For collectors drawn to vintage cues but unwilling to give up modern movement performance, it lands in a particularly comfortable place.




