Reference
126203
Model case
Oyster, 36 mm, Oystersteel and yellow gold
Bezel
Domed
Water resistance
Waterproof to 100 metres / 330 feet
Movement
Perpetual, mechanical, self-winding
Calibre
3235, Manufacture Rolex
Power reserve
Approximately 70 hours
Bracelet
Oyster, three-piece solid links
Dial
Olive green
Certification
Superlative Chronometer (official chronometer certification + Rolex certification after casing)