Pre-owned Tudor Black Bay 36 ref M79640-0002 (2026). Tudor updated the BB collection in 2023, outfitting all four case sizes with chronometer-rated Tudor Manufacture movements, various elegant dial colors, and 5-link bracelets with the innovative T-Fit clasp. The result is a collection that still abides by Tudor’s enduring design codes but with a bevy of thoughtful upgrades for the modern collector. Ref. 79640 is the 36mm model, complete with a smooth bezel, a flat sapphire crystal, and the in-house caliber MT5400 with self-winding and a 70-hour power reserve. It also sports the highly sought-after blue dial decorated with luminescent hour markers and Tudor Snowflake hands. Shop Tudor Black Bay Collection