Black Bay GMT "Blue & Red" (Pepsi)

Excellent Condition

Minimal signs of wear, visible only under close inspection or magnification. The crystal is clean to the naked eye. The case retains its original factory finishing with only the faintest surface marks on polished areas. The bracelet shows negligible wear with no meaningful desk marks or stretch. The dial is flawless. The movement is running within manufacturer specifications.

The classification above sets general expectations. Below is the specific, component-by-component condition report for this individual watch. Every detail is based on our in-hand inspection and documented in the photographs.

This watch was authenticated in-house before listing. Our process includes visual and weight assessment, case and crystal inspection under magnification, caseback opening and movement verification against the correct caliber for this reference, serial number check against stolen property databases, timing test on a professional timegrapher, and functional testing of all complications. The findings are documented and available on request.

The M79830RB launched at Baselworld 2018 and was, at that moment, the most horologically serious Pepsi GMT on the market — it predates the steel Jubilee 126710BLRO by months and houses a manufacture caliber with a true traveler GMT complication (independent local hour jumping), a 70-hour power reserve, and silicon hairspring, at a price roughly a third of the Rolex equivalent. The matte burgundy-and-blue anodized aluminum bezel is deliberately vintage in tone where Rolex's Cerachrom is glossy and modern, and the Snowflake handset ties the piece back to Tudor's 1970s military dive-watch vocabulary. The -0001 suffix designates the steel-bracelet configuration on the riveted three-link. It is the GMT that reframed what "entry-level" Swiss tool-watch engineering could look like, and the reference that made the Black Bay line a serious catalog offering rather than a heritage sub-brand.