Arnold & Son Chronometry Longitude Titanium 42.5mm Watch

Ref. 1LTAT.F01A.N001U

The 42.5 mm Grade 5 titanium case is 12.25 mm thick, with polished flanks and satin-finished flat surfaces that follow a profile drawn from sailing boat design. The bezel carries 60 notches, a detail borrowed from the fluted rings of Arnold's original marine chronometers, and the screw-down crown sits behind protective guards. A domed sapphire crystal with anti-reflective coating on both sides covers the dial; the case back is also sapphire, revealing the movement beneath. The fern green dial has a vertical satin finish, with applied baton indices and semi-skeletonised hands carrying Super-LumiNova. Power reserve and small seconds are arranged on the vertical axis at 12 and 6 o'clock respectively. The COSC-certified in-house A&S6302 runs at 28,800 vph with a 60-hour power reserve; its rotor is an openworked 22ct red gold form shaped after an 18th-century English frigate prow. The integrated titanium bracelet has domed, mixed-finish links and a titanium folding clasp.

Reference

1LTAT.F01A.N001U

Brand

Arnold & Son

Case size

42.5mm

Case material

Titanium

Dial

Green

Crystal

Sapphire

Movement

Automatic

Calibre

A&S6302

Functions

Small seconds, Skeleton dial

Water resistance

100m

Bracelet / strap

Rubber strap

Strap colour

Green

Clasp

Folding clasp

Lume

Super-LumiNova

Retailer

Goldsmiths