lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Best dress watches·Diver under $2,000·Chronograph under $5,000·Sport under $5,000·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·What should I buy?·Value retention rankings·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/ProTek Watches/USMC Automatic
ProTek Watches USMC Automatic
Click to inspect
Ask the communityStart a discussion about the USMC Automatic — get takes from other collectors.Ask →
ProTek Watches · USMC

ProTek Watches USMC Automatic

Diver

$695In stock
Buy from ProTek WatchesFind used on eBay

Case

Diameter
42mm
Thickness
16.35mm
Lug width
22mm
Material
Carbon
Water resistance
300m

Crystal & dial

Crystal
Sapphire
Lume
Tritium

Movement

Caliber
Seiko/TMI
Type
Automatic
Hacking
No
Hand-winding
No
Complications
Time only

Design language

Case shape
round
Dial style
standard
Bezel
rotating_unidirectional
Bracelet
rubber_strap

AI-detected from the product image

4 colorways

Alternatives

02The connection engine

More like this.

ProTek Watches ProTek Diver

ProTek Watches

ProTek Diver

42mm · Automatic$895

Crafter Blue Mechanic Ocean Mark II

Crafter Blue

Mechanic Ocean Mark II

41mm · Automatic$449

Erebus Watches Titan

Erebus Watches

Titan

44mm · Automatic$549

Oceaneva GMT Titanium Automatic Deep Marine Explorer 1250M

Oceaneva

GMT Titanium Automatic Deep Marine Explorer 1250M

42mm · Automatic$749

Aera Instruments D-1 Diver

Aera Instruments

D-1 Diver

44mm · Automatic$2,300

Tornek-Rayville Paradive Gen 3 Type I

Tornek-Rayville

Paradive Gen 3 Type I

41.25mm · Automatic$949

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The ProTek Watches USMC Automatic is an automatic diver watch, with a 42mm carbon case, 16.35mm thick, powered by the Seiko 24-jewel Automatic (NH-class) movement. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $695.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

05The discussion

Talk about the ProTek Watches USMC Automatic.