Housed in a 40 mm round Oyster case crafted from Rolesor — Rolex's combination of 18K yellow gold and stainless steel — the 16613 features a screw-down 18K yellow gold crown and a unidirectional rotating bezel with a black aluminum insert. Scratch-resistant sapphire crystal protects the solid case back's counterpart up front, while water resistance reaches 300 m / 1,000 ft.
The black dial is dressed with applied gold dot hour markers and Mercedes-style hands in 18K yellow gold with luminescent fill, delivering sharp legibility against the dark background. Power comes from the automatic Caliber 3135 movement, offering approximately 48 hours of power reserve along with a date complication. The matching Rolesor Oyster bracelet closes with a steel buckle rather than the Oysterlock deployant found on later references.
This pre-owned example comes with its original Rolex box; papers are not included. A 2-year warranty is provided by Luxury Watches USA. The 16613 was discontinued in 2008 when the current 116613LN took its place with a ceramic bezel, making this aluminum-insert generation a distinct chapter in the Submariner's history.
