Case

Shape

Round

Diameter (in mm)

46

Water Resistance

100 m (330 ft)

Crystal

Sapphire crystal with GRAHAM inscription, anti-reflective coating on both faces

Model Case

Lateral porthole at 10 o'clock to admire escapement and balance wheel, See-through sapphire crystal case back with gold (18K) screws, Steel case with DLC and ceramic

Bezel

Black ceramic (ZrO2) bezel with golden tachymeter scale, Gold (18K) knurled ring under the bezel

Winding Crown

Gold (18K) crown secured by a bayonet system with red safety ring and "RS" inscription engraved, Gold (18K) right hand control pushers

Material

Steel case with DLC and ceramic

Dial

Indexes

Bâtons

Color

Black skeleton dial

Details

Golden chrono, minutes and seconds counters' hands, Golden hours and minutes hands coated with white Super-LumiNova, Golden minute scale with black graduation, Openwork balance bridge and plates, Shaded grey and rhodium and golden movement with hand-drawn strokes decoration

Movement

Power Reserve

46 Hours

Movement

Self-winding mechanical

Winding

Automatic

Functions

Chronograph, Hours, Minutes, Seconds, Tachymeter

Jewels

29

Frequency

28,800 VpH (4 Hz)

Oscillator

Oscillating weight with hand-drawn strokes decoration and snailed external segment

Caliber

G1790

Bracelet

Material

Alligator Leather

Bracelet

Integrated black alligator - rubber injection-moulding for higher resistance

Clasp

Steel folding buckle with black DLC clasp