Case Size: 41 mm diameter

Case Material: 18 kt White Gold (not Oystersteel / 904L stainless).

Bezel: Unidirectional rotatable 60-minute graduated bezel with blue Cerachrom ceramic insert (not a smooth polished bezel).

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

Water Resistance: 300 meters / 1,000 feet.

Movement: Rolex Calibre 3235, self-winding mechanical.

Oscillator / Balance: Paramagnetic blue Parachrom hairspring + Paraflex shock absorbers.

Power Reserve: ~70 hours.

Functions: Hours, minutes, seconds; instantaneous date at 3 o’clock with rapid setting; stop-seconds for precise time-setting.

Bracelet: Oyster bracelet (flat three-piece links), in 18 kt white gold. 

Clasp: Folding Oysterlock safety clasp with Glidelock extension system (for fine adjustment) — not “Easylink.”

Dial / Markers / Hands: Black lacquer dial (standard for 126619LB), with hour markers and hands in 18 kt white gold, filled with Chromalight for long-lasting luminescence. 

Certification / Precision: Superlative Chronometer — −2/+2 sec/day after casing.