Watchuseek Blog

Wednesday, November 16, 2011


She’s a rainbow: Graham Swordfish Booster Iris

Graham Watches, noted in recent times more for their focus on a range of superior motor racing oriented timepieces such as the Graham GP Timezone and the Graham Silverstone Stowe GMT, has introduced a new watch model; Swordfish Booster Iris with a range of rich iridescent colours unique to each watch.

All the colours of the rainbow 


Translated from the Latin Iris means ‘rainbow’ and the constantly shifting rainbow effect is obtained not by paint but through the interference of light waves through a thin, multi-layered coating. A similar effect can be seen on the surface of a soap bubble or in oil slicks on the floor of your local motor mechanic shop.

How it’s achieved

The constantly changing colours are achieved through the use of complex structure oxide layers. Steel casing and other components of the watch are placed in a large vacuum chamber, which produces plasma reactions. The unique coating comprises a multilayer structure that provides overlaying ultrathin films, one on top of the other. A thicker layer over the entire surface causes a change of colours in reflected light.

48mm case, 48 hour power reserve

The steel case is an impressive 48 mm with black PVD coating and interferential substrate (to create the iridescent effect) with two portholes at 3 o’clock and 9 o’clock, and a black mother-of-pearl dial with black Super-LumiNova.

The watch runs on a calibre G1710, automatic bi-compax chronograph movement, 34 jewels, 28’800 A/h (4Hz), with a 48 hours power reserve.

The sapphire case back is see through and the watch comes on an integrated green crocodile strap, waterproof to 100 metres.

The rainbow effect of the Iris Booster can be yours for around US$16,398. If it's beyond your budget there's always your mechanic's workshop floor to gaze upon.

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