POSEIDON 42MM – BUILT FOR THE DEEP, READY FOR THE FIGHT
The Poseidon is your no-nonsense dive companion. Inspired by the Marine Nationale ethos and engineered through the Senditcate “built for those who serve” lens, this watch is designed for operators who need reliability when the water gets dark and the mission gets real.
Key Features
• 42 mm Titanium Case w/ Countdown bezel
Feather-light, bomb-proof, and corrosion-resistant. Titanium keeps the Poseidon tough enough for saltwater, impact, and long shifts in the elements.
• Sapphire Crystal
A scratch-proof dome that shrugs off salt, sand, steel, and duty-life abuse. Clarity when you need it, durability all the time.
• 22 mm Solid Fixed Lugs
A rigid, FXD-style lug system that locks your strap in place. Zero flex, zero failure. Built to stay on your wrist no matter what the day throws at you.
• High-Visibility Lume
Glowing markers and hands that punch through murky water and low-light—perfect for search & recovery, night ops, or early morning dives.
• 100M/330ft Water Resistance
Purpose-built for serious marine use, training days, or weekend dives.
• Seiko NH-35 Automatic Movement
Reliable, serviceable, and powered by motion. No batteries. No excuses.
Made for Operators. Designed for the Deep.
The Poseidon blends tactical function with clean, modern lines, giving you a watch that looks at home underwater, on duty, or behind the wheel on the way to shift briefing.
6 in Stock updated (02/5/26)
2 Reviews Hide Reviews Show Reviews
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Operation Poseidon
Great feel, light weight, solid fit. Excellent customer service. Shipping was fast. Comes in a great case for storage. I will definitely make future purchases.
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Poseidon
Amazing. I own several different mechanical watches, this is now my go to. Solid case, excellent water resistance, strong crystal, excellent Iridescence that surpasses my more expensive brands. You get a lot of quality for the price. Excellent dive watch, but solid enough for outdoor adventures and stays true even when there's a lot of range time. Far exceeded expectations. It is also a very aesthetically pleasing. Looks good at the range and at a non casual event. Grab one, you will love it as much as I do. Top shelf 100%.