2026-05-05
Best Watch Straps for the Tudor Black Bay GMT
Best Watch Straps for the Tudor Black Bay GMT
The Tudor Black Bay GMT arrived at Baselworld 2018 alongside the Rolex GMT-Master II Pepsi — the same event, the same bezel colours, the same GMT complication, two very different price points. Tudor's in-house calibre MT5652 delivers a genuine bidirectional GMT complication with a 70-hour power reserve and COSC chronometer certification. The watch is rated to 200m — deeper than most GMT watches in production.
What distinguishes the Tudor Black Bay GMT is its bezel character. Where the Rolex GMT-Master II uses a ceramic CERACHROM bezel insert, the Tudor BB GMT uses an anodised aluminium bezel insert that shifts in colour tone from royal blue and dark metallic red to almost black and deep burgundy depending on the light — referencing the Bakelite bezels of 1950s GMT watches in a way that the ceramic Rolex cannot. The Tudor is the more vintage-feeling of the two. For a watch built around the Black Bay's vintage dive watch heritage, this is entirely appropriate.
Tudor Black Bay GMT Strap Size
Every Tudor Black Bay GMT reference uses 22mm lugs — confirmed by Tudor's own official specifications. 41mm case, 14.6mm thick, 50mm lug-to-lug. Standard spring bars.
Black Bay GMT Pepsi (ref. M79830RB-0001, 0002, 0003, 0012) — 22mm. Red and blue aluminium bezel insert.
Black Bay GMT Batman / Shadow (black/blue bezel variants) — 22mm. Black and blue aluminium bezel insert.
Black Bay GMT S&G (ref. M79833MN-0001, 0004) — 22mm. Steel and yellow gold case, black dial.
The Factory Fabric Strap — What Tudor's Own Choice Tells You
Tudor ships several BB GMT references on a single-pass fabric strap as standard. The M79830RB-0003 and M79830RB-0012 both come on fabric as the factory default — validating the CNS single-pass nylon as the factory-endorsed construction for this watch.
Best Rubber Straps for the Tudor Black Bay GMT
Tropical style FKM in black at 22mm — the most collector-appropriate rubber choice. The vintage basket-weave patterns reference the 1950s Bakelite bezel GMT watches that the BB GMT's aluminium bezel evokes.
Brown tropical FKM at 22mm — for the most aged vintage-inspired combination. Warm brown tropical texture against the Pepsi bezel creates a warm-cool contrast referencing aged original 1950s GMT rubber.
Black FKM rubber at 22mm — the most practical active choice. Suits the Batman/Shadow bezel particularly well.
Blue FKM rubber at 22mm — for the Pepsi and Batman references. Echoes the blue half of the bezel.
Red FKM rubber at 22mm — for the Pepsi specifically. Red rubber picks up the red half of the bezel directly.
Best Nylon Straps for the Tudor Black Bay GMT
Single-pass nylon — Original at 22mm with the CNS solid buckle. Most appropriate colourways:
- Black — the most minimal. Suits all three bezel variants equally.
- Navy — for the Pepsi and Batman. Echoes the blue half of both bezels.
- Black and grey — the most understated collector combination for the Batman/Shadow.
- Blue and red stripe — for the Pepsi. The stripe references the bezel's dual-colour design directly.
- Admiralty Grey — the MOD specification colourway.
RAF single-pass nylon at 22mm — the fabric keeper variant with lower-profile hardware.
Marine Nationale elastic at 22mm — the most comfortable daily wear option. Navy or black.
Paratrooper elastic at 22mm — the most comfortable daily-wear option.
Best Leather Straps for the Tudor Black Bay GMT
Brown vintage two-stitch calfskin at 22mm — the most widely discussed BB GMT leather combination. The warm brown tone against the Pepsi bezel's red and blue creates a warm-cool contrast. The two-stitch construction references the 1950s vintage GMT era the BB GMT directly evokes.
Dark brown padded calfskin at 22mm — the most substantial everyday leather. The padded construction matches the 14.6mm case thickness proportionally.
Classic black calfskin at 22mm — the most formal combination. Particularly coherent on the Batman/Shadow where the blue bezel becomes the sole colour accent.
Navy calfskin at 22mm — for Pepsi and Batman references. Tonal coherence with the blue bezel half.
Dark brown suede at 22mm — the most relaxed leather option for smart-casual contexts.
The Tudor Cluster
The BB GMT shares its 22mm lug width with the Pelagos — the same strap fits both. For the Black Bay 54 at 20mm see the individual guide.
Bezel-Specific Recommendations
Pepsi (red/blue): Brown vintage two-stitch leather for warm contrast; navy calfskin for blue tonal coherence; blue and red nylon for bezel-referencing; brown tropical FKM for vintage active. All at 22mm.
Batman / Shadow (black/blue): Black leather for composed formal; black tropical FKM for coherent active; black and grey nylon for understated daily wear. All at 22mm.
S&G Steel and Gold: Brown vintage two-stitch echoing the warm gold; dark brown padded calfskin for everyday. At 22mm.
Frequently Asked Questions
What size strap does the Tudor Black Bay GMT take? Every Tudor Black Bay GMT — Pepsi, Batman/Shadow, and S&G — uses 22mm lugs. Confirmed by Tudor's official specifications. Standard spring bars across all variants.
What is the best rubber strap for the Tudor Black Bay GMT Pepsi? Black tropical style FKM at 22mm for the most collector-appropriate combination. Brown tropical FKM for the most aged vintage character. Blue FKM for the most specifically Pepsi-referencing active combination.
What is the best leather strap for the Tudor Black Bay GMT? Brown vintage two-stitch calfskin at 22mm — the most widely discussed combination. The warm brown against the Pepsi's red and blue references the 1950s vintage GMT world directly.
Does Tudor ship the Black Bay GMT on a fabric strap? Yes — the M79830RB-0003 and M79830RB-0012 ship on single-pass fabric as standard. Tudor's own editorial choice validates the single-pass construction as factory-appropriate for this watch.
Does the Tudor Black Bay GMT take the same strap as the Pelagos? Yes — both use 22mm lugs. The same strap rotation serves both references.
All CNS straps for the Tudor Black Bay GMT are available at 22mm. Standard delivery worldwide. 30-day returns.