Brand: Rolex Item name: C-Dweller D-Psi-Watch D Blue Item name (English): Sea Dweller Deep Sea Model #: 136660 Material: SS Case Material: Stainless steel Strap Material: Stainless steel Movement: Automatic winding Weight: 215.1 g Case diameter (H): 44 mm (1.73 in) Case diameter (W): 44 mm (1.73 in) Arm circumference (cm): 20.5 cm (8.07 in) Dial: Blue date: November 2022 Accessories: Box details: In-house 3 month Maintenance: Polished Item Description: This is a chronometer-certified model. It features a 44 mm (1.73 in) large-shaped case and overwhelming waterproof performance of 3900m, and is equipped with the "Ring Lock System" that can withstand strong pressure like the previous model. The case side is equipped with a helium escape valve, and the bezel is made of ceramic with excellent scratch resistance. Buckle Equipped with Rolex's unique "Glidelock Extension System", the length can be finely adjusted without any tools. Item Condition: Roulett.