Tudor Black Bay 36 vs Tudor Black Bay 58, Navy

Side-by-side at a glance. Click a watch above to open the full reference page.

	Tudor M79500-0001	Tudor 79030N
Model	Black Bay 36	Black Bay 58, Navy
Caliber	Tudor T600 -- ETA 2824-2 base, Tudor-finished, 28,800bph, 38h PR, 25j; used in 1926 and Black Bay 36; reliable ETA-based automatic	Tudor MT5402 -- in-house automatic, 28,800bph, 70h PR, 26j; METAS-certified, bidirectional winding, free-sprung hairspring
Case size	36mm	39mm
Lug-to-lug	42mm	44.6mm
Years produced	2016–present	2018–present
Brand tier	luxury	luxury
Era	modern	modern
Movement tier	Mid-supplier movement	Unclassified movement
Market median (excellent / full-set)	n/a	n/a
Typical range	n/a	n/a
Confidence	low	low
Categories	dive, sport	dive, sport
Editorial	yes	yes
Typical price (2026)	n/a	$2,800 – $3,800
Service	Every 5 years · $300 – $600	Every 8 years · $600 – $900
Collector note	n/a	best value: At 39mm with an in-house movement and METAS certification, this is widely cited as the strongest value proposition in the sub-$4,000 dive watch market.