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La Chaux-de-Fonds based Swiss watch maker GRAHAM SA presents FORTRESS, a limited edition automatic mono-pusher chronograph watch with its operating elements placed on the left side of the case.

Dressed in a massive 47mm diameter stainless steel case, the GRAHAM FORTRESS watch is available with a blue sunray dial or a black grained dial. Each version is limited to 100 pieces.

Its bold, luminescent hour and minutes hands collaborate with ample, applied Arabic numerals to display the time. The dial has two circular brushed counters, a small seconds display at 3o’clock and a 30-minute chronograph register at 6o’ clock. A date display is located adjacent the monopusher/crown.

The generous proportions of the watch confer impressive wrist presence, while the exhibition caseback affords view of the Fortress’s Swiss automatic chronograph mono-pusher movement. Certified by Chronofiable®, this calibre has a power reserve of 48 hours.

The pusher, positioned in the top of the crown, starts, stops and resets the chronograph. The deliberate positioning of crown and pusher on the left side of the case ensures quick and easy operation. Another key benefit of positioning the combined crown and mono-pusher on the left is superior wearer comfort.

Fitted on hand-sewn calf leather strap, the GRAHAM FORTRESS watch has a retail price of $7,750.00.


Technical details


Chronograph (seconds, 30 minutes counter)
Large date at 9 o’clock
Hours, minutes, seconds

Calibre: G1750, automatic chronograph mono-pusher movement
28’800 A/h (4Hz)
Incabloc shock absorber
25 jewels
Power reserve: 48 hours
Movement certification: Chronofiable® (improved shock absorption)

Stainless steel case
Diameter: 47 mm
Mono-pusher start / stop / reset and crown on the left side of the case
Domed sapphire crystal with anti-reflective coating on the underside
See-through sapphire crystal case back with limited edition serial number
Bezel: Steel satin-brushed
Water resistance: 330 feet/ 100 m / 10 bar

Black grained dial with beige Super-LumiNova numerals (font inspired by vintage aircrafts)
Hand-applied numerals
Circular sun-brushed counters
Rhodium hours hands with beige Super-LumiNova coating
Rhodium chrono, minutes and seconds counters hands
Also available with a blue sunray dial

Hand-sewn black calf leather with beige stitches
Steel pin buckle

Limited edition
100 pieces each

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