Black Dial Watch 50mm Steel RF3OC45HMDG

• ◆ Gender: Men's
• ◆ Band Material: Steel
• ◆ Case Diameter: 50 MM
• ◆ Dial Color: Black
• ◆ Diamond Setting: No
• ◆ Movement Type: Swiss
• Technical Specifications

Engineered to endure conditions at extreme ocean depths, the watch achieves water resistance rated to 11,000 meters. The engineering foundation relies on a proprietary system incorporating a nitrogen-infused steel ring designed to manage intense pressure against the sapphire crystal measuring 9.5 mm in thickness. A specialized helium release mechanism permits safe depressurization by allowing trapped gases to exit the case without causing structural harm.

Construction from this pioneering material represents a watershed achievement — marking the debut of a commercially manufactured timepiece utilizing this substance exclusively. The resulting watch is notably more lightweight and wearable than would be possible with conventional steel, demonstrating approximately 30% mass reduction relative to an experimental steel variant. The case receives an extensive satin treatment that produces a refined, understated matte finish, creating visual distinction when compared to conventionally polished watches.

Powered by an in-house caliber featuring an escapement paired with a blue hairspring, this timepiece delivers remarkable accuracy alongside an impressive power reserve extending to roughly 70 hours. The 50 mm case represents the most expansive commercial watch ever produced, ensuring superior readability through its persistent blue luminescent display.