Dive Watches (Mechanical)
Automatic (mechanical) dive watches, from under $200 to the professional tier. Every watch below is rated to at least 200m with a screw-down crown. Prices were checked on October 25, 2026 and change.
A dive watch is not a dive computer. It does not calculate no-decompression limits. It is a backup timer; the dive computer is the primary instrument.
Under $200
Invicta Pro Diver 8926OB
200m water resistance, screw-down crown, 40mm case. Not ISO certified. The lowest-cost automatic with a real dive specification.
Orient Ray II / Mako II
200m, screw-down crown, 41.5mm case. The Ray has round markers; the Mako has numerals. Not ISO certified.
Citizen Promaster Dive Automatic NY0040
200m and ISO compliant — a certified dive watch under $200. 42mm case, crown at 4 o’clock. Not a current US authorized-dealer model, so the warranty is the seller’s.
$200 to $500
Seiko Prospex Turtle
200m, ISO certified, 45mm case that wears smaller than the number suggests. The standard recommendation.
Seiko Prospex Samurai
200m, ISO certified, 44mm angular case. The sharper-edged alternative to the Turtle.
Orient Kamasu
200m, screw-down crown, 41.8mm case, sapphire crystal. The Mako II with a sapphire crystal and better lume.
Islander Red October V2 (ISL-323)
200m, sapphire crystal, ceramic bezel insert, 42mm case. Sold by Long Island Watch, a Long Island, New York company and an authorized dealer for the brands it carries.
Deep Blue Pro Sea Diver 1000
Rated to 1000m, 44mm case. Deep Blue runs near-permanent sale pricing, so $299.99 is the regular street price.
$500 to $1,000
Seiko Prospex King Turtle
200m, ISO certified, 45mm case. The Turtle with a sapphire crystal, a ceramic bezel, and a textured dial.
Citizen Promaster Fujitsubo (NB6021)
200m, ISO compliant, 41mm Super Titanium case. A reissue of Citizen’s 1977 Challenge Diver.
Steinhart Ocean One 39
300m, 39mm case, sapphire crystal and ceramic bezel. Steinhart sells direct from Germany; Gnomon is its authorized partner.
Squale 1545, 20 Atmos
200m, 40mm case. Squale made dive watch cases for other brands in the 1960s. The 30 Atmos version of the same family is $998 — check which one is being ordered.
Vaer D5
200m, 39mm case, assembled in the USA, with an original design rather than a homage case.
Over $1,000
Christopher Ward C60 Trident Pro 300
300m water resistance, screw-down crown, sapphire crystal, in 38, 40, 42, and 44mm cases.
Marathon GSAR
300m water resistance, 41mm stainless case. A military specification search-and-rescue watch.
Only the Seiko Prospex and Citizen Promaster watches above carry an ISO compliant diver claim. The others meet the 200m and screw-down crown specification without ISO certification.