Skip to content
Face up photo of Longitude Titanium
Chronometry

Longitude

Longitude Titanium is a COSC-certified chronometer with a power-reserve display and an imposing seconds counter paying tribute to John Arnold’s marine chronometers and his decisive role in calculating longitude at sea.

Photo of Longitude Titanium

High-sea chronometry

The aesthetics and construction of John Arnold’s marine chronometers were necessarily classic and functional and were adapted to the harsh conditions of the high seas. Longitude Titanium, a contemporary interpretation of the great English watchmaker’s work, coherently combines this naval heritage with a refined design and highly resistant materials. The movement’s ‘chronometer’ certification is an essential addition to this scene, with its historical ties to Arnold’s creations and his quest for accuracy.

Photo of Longitude Titanium

nautical design

As a natural consequence of this maritime identity, Longitude presents a titanium case whose curves and profile are directly inspired by the design of contemporary sailing boats. The case middle is taut like a ship’s waterline, while the case back is basin-shaped like a keel. The base of the bezel – the ship’s rail – is graduated with 60 notches, echoing the fluted ring of John Arnold’s marine chronometers. The finishes – polished on the flanks and satin-finished on the flat surfaces – continue this high-sea influence. The crown, protected by a shoulder, is screwed down to guarantee water-resistance to 100 metres.

The collection

Photo of Longitude Titanium

flowing curves

With its flowing curves, Longitude Titanium is both comfortable to wear and a joy to behold. Each of the series is fitted with an integrated titanium bracelet. Everything is rounded with no straight lines, even in the finer details as the links themselves are domed. The succession of gentle curves and combination of polished and satin-finished surfaces are a continuation of the case’s identity. Longitude Titanium is complemented by an interchangeable system and comes with an additional rubber strap.

Photo of Longitude Titanium

tribute to marine chronometers

The dial of Longitude Titanium has been designed in a graphic and historical spirit. This graphic aspect can be seen in the satin-finished, polished and luminescent hour-markers that recall the shape of the bracelet links. It is also graphic in the display of its indications, which are aligned with the vertical axis of the dial: a mirror-polished power-reserve indicator shown by cut-outs in the dial at 12 o’clock, the hour and minute hands in the centre, and the imposing small seconds at 6 o’clock. However, this layout was also chosen for its ties to John Arnold’s marine chronometers, as it was he who introduced this arrangement and established it as standard. 

Other collections in Chronometry

Photo of Nebula 40 Steel
Nebula

Since their creation, the fully skeletonised Nebula collection in 38, 40 and 41.5 mm has been a star bursting with light.

Discover collection
Soldier photo of Ultrathin Tourbillon Red Gold
Ultrathin Tourbillon

Ultrathin Tourbillon is one of the slimmest in the world. Presented in its purest expression, nothing distracts the eye from the hypnotic workings of the one-minute flying tourbillon.

Discover collection
Soldier photo of Time Pyramid Platinum
Time Pyramid

By arranging the organs of Time Pyramid‘s movement from top to bottom instead of in a circle, Arnold & Son goes beyond the chronometric horizon to achieve an unparalleled feat of design.

Discover collection
Soldier photo of DSTB 42 Red Gold
DSTB

DSTB, which stands for ‘Dial-Side True Beat’, is one of Arnold & Son’s most personal collections, revealing its true-beat second’s mechanism on the dial side.

Discover collection