Arnold & Son Longitude: marine-chronometer thinking in titanium and green

Arnold & Son · Longitude Titanium Fern Green

The model in detail

The green Longitude rests on a vertical composition. A reserve indicator sits above a large small-seconds register, leaving space for the central hands. The layout recalls John Arnold’s marine chronometers. History is expressed through the arrangement of information, so the watch need not imitate a shipboard instrument literally.

The automatic A&S6302 offers 60 hours of reserve. COSC confirms that the movement meets defined chronometer criteria; it is best understood as a verified technical standard rather than a promise of identical results on every wrist. The reserve display is particularly appropriate when rotating watches: it shows when to wear the Longitude again or wind it manually.

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The 42.5 mm titanium case continues into a titanium bracelet. Vertical brushing on the green dial supports the direction of the links, with polished edges adding light. In my view, Fern Green’s strength is design coherence. Before buying, check how the first link extends across the wrist: diameter alone cannot describe an integrated silhouette.

Stated water resistance is 100 m and the reference is 1LTAT.F01A.N001U. Obtain exact pricing and delivery for the chosen configuration from an authorised seller. It is interesting for someone seeking sporting metal, a composed dial and a recognisable mechanical theme. Marine heritage does not mean the presence of world time or a longitude-calculation function.