Case Size: (Diameter) 40.0 mm 

Case Material: Solid 18 kt Yellow Gold 

Bezel: Fluted 18 kt Yellow Gold bezel (fluted, not smooth) 

Crystal: Scratch-resistant sapphire with Cyclops lens over the date 

Water Resistance: Waterproof to 100 metres / 330 feet (10 ATM) 

Movement: Automatic perpetual winding movement, Calibre 3255 (not 3235) 

Oscillator / Balance / Regulator Paramagnetic blue Parachrom hairspring + high-performance Paraflex shock absorbers 

Power Reserve: Approximately 70 hours 

Function: Hours, minutes, seconds; instantaneous day (at 12 o’clock) and date (at 3 o’clock) with rapid-setting; stop-seconds for precise time-setting 

Bracelet : Typically fitted with the signature President bracelet (semi-circular three-piece links, full 18 kt yellow gold) 

Clasp : Concealed folding Crownclasp (not the Oysterclasp / Easylink) — consistent with Day-Date lineup. 

Dial: Options Multiple — e.g. white, black, green, champagne, silver, etc. (some with roman numerals, index markers, or even diamond / baguette versions) 

Certification / Precision: “Superlative Chronometer” certified — −2/+2 sec/day after casing