TUDOR Black Bay 41 GMT Pepsi Watch M79830RB-0001

The TUDOR Black Bay GMT Pepsi (Ref. M79830RB-0001) combines TUDOR’s diving watch heritage with proper GMT functionality, creating a travel watch that doesn’t sacrifice underwater capability. The burgundy and blue “Pepsi” bezel provides day/night reference for a second time zone while maintaining the Black Bay’s proven diving credentials with 200m water resistance.

The 41mm steel case strikes the right balance for both diving and travel use. Substantial enough for underwater work but not oversized for business environments. At 14.6mm thick, it’s proportional without being bulky, and the mixed brushed and polished finishing gives it the tool watch aesthetic that made the Black Bay line successful.

TUDOR’s Manufacture Calibre MT5652 delivers a weekend-proof 70-hour power reserve and COSC certification. The independent hour hand adjustment lets you change local time without stopping the watch or affecting your home time reference, genuinely useful for frequent travellers. The silicon balance spring adds magnetic resistance for modern travel environments.

The riveted bracelet maintains the vintage-inspired aesthetic while offering genuine comfort for extended wear. The GMT functionality works intuitively – track home time with the red hand, local time with the main hands, and use the bidirectional bezel for a third time zone when needed.

This Black Bay GMT suits buyers who want legitimate dual-time capability in a proven diving watch platform. Unlike dress GMT watches that compromise water resistance, or dive watches with questionable GMT implementations, this delivers both functions properly. It’s ideal for professionals who travel internationally but also want a watch capable of serious recreational diving, no compromises required.