Rolex GMT-Master II

These affectionate nicknames come from the bezel colors. The "Pepsi" features a blue and red bezel, reminiscent of the soft drink's branding—it's the original GMT-Master color scheme from 1954 and remains the most iconic. The "Batman" has a blue and black bezel and was introduced in 2013, originally only on the white gold model before coming to steel.

The "Batgirl" is essentially a Batman on a Jubilee bracelet rather than an Oyster bracelet—some purists argue the name distinction is unnecessary, but it's stuck in collector parlance.

There's also the "Root Beer" (brown and black bezel, typically on two-tone models), the "Coke" (red and black, vintage and modern references), and various all-black configurations.

These nicknames make discussing specific references easier and have become part of the culture around GMT-Master II collecting.

Absolutely—many GMT-Master II owners never cross time zones but still appreciate the functionality and aesthetics. The GMT hand can track a second time zone for anyone you need to contact regularly—family in another region, business contacts overseas, or even just East Coast versus West Coast.

Some owners use the GMT hand to track military (24-hour) time while the main hands show standard time. Others simply appreciate the visual interest the additional hand and colorful bezel provide.

The GMT-Master II is also just an exceptionally well-made sports watch that happens to have this extra function. You don't need to justify owning it based purely on travel—its design, build quality, and wrist presence are reasons enough. The GMT function is there when you need it, and adds character even when you don't.

The steel "Pepsi" (reference 126710BLRO) is currently king of value retention, often selling above retail in the pre-owned market due to continued high demand and limited availability.

The "Batman" references (116710BLNR and 126710BLNR) also perform exceptionally well. Vintage GMT-Master models, particularly "gilt dial" examples and early references, have appreciated significantly and continue to be strong investments.

Discontinued references often see immediate appreciation—the previous-generation "Pepsi" on Oyster bracelet is already commanding premiums. Two-tone and solid gold GMT-Master II models follow different value trajectories, typically with more depreciation initially but strong long-term stability. Generally speaking, steel sports models with distinctive bezels (Pepsi, Batman) in good condition with boxes and papers hold value best.

That said, the best GMT-Master II is the one you'll actually wear and enjoy—watches that sit in safes don't bring any return on life, only investment.