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Shipping in February 2023

This is The NEPTUNE; A Marine Raider’s take on a gentlemen’s combat diver’s watch. Sleek and refined exterior with an interior built specifically for rugged subsurface usage. 

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Case Width:  40mm

Lug to Lug Length:  49mm

Case Thickness: 13.9mm

Lug Width: 20mm

Bezel Width: 41mm

Case:  316L Stainless Steel - brushed finish case with screw down crown, recessed to prevent damage (concentric brushing on case back). Brushed Diamond-like Carbon coating is also available.

Crystal:  Double Domed sapphire crystal with a multi-layer blue anti-reflective coating applied to the interior surface of the crystal.

Luminous:  SuperLumiNova BGW9 rated after full charge.

Bezel:  120-click uni-directional nickel edged bezel with aluminum bezel insert.

Water Resistance:  200m (20 ATMs)

Movement: SII NE15C - Manual winding / Automatic winding with ball bearing Stop second device / Quick date correction / 21,600 bph / ISO 6425 attributes, such as antimagnetic to 4800 Amp and shock-resistant (calibrated in three positions).

Power Reserve: 50 hours power reserve (SPRON510 mainspring).

Strap: The NEPTUNE will ship on a stainless-steel solid link bracelet, with V-Clasp double lock buttoned diver's clasp. In addition to the bracelet, a rubber divers strap with solid stainless-steel hardware will ship with the NEPTUNE.

* If international shipping is required. All handling and import fees, will be paid by buyers at/during import.

When it came to designing the NEPTUNE, we wanted people to feel confident in the reliability of our dive watch. NEPTUNE is the result of two years of development, prototyping, and testing. We had experienced divers and engineers from the special operations community and MIT fielding NEPTUNE, resulting in multiple revisions and iterations on the texture of the crown, crown guard, spring-bars, and bezel insert materials. We tested a multitude of bezels to ensure that its seal is tight, but loose enough to allow subsurface manipulation with gloves. Once the prototype was finalized the real-world testing began.

This was a special project with 60 veterans, active-duty service members, and scientists from MIT & Woods Hole Oceanographic Institute that field-tested the NEPTUNE for over 300k hours combined, all over the world with zero issues. We also put NEPTUNE through an independent third-party testing company to ensure it exceeds the ISO 6425 standards for diver's watches. Just like we earn our right to wear our various badges and unit crests in the military, Sangin Instruments has earned the right to use terms anti-magnetic, shock-resistant, chemical resistant, and DIVER'S WATCH.

This is The NEPTUNE; A Marine Raider’s take on a gentlemen’s combat diver’s watch. Sleek and refined exterior with an interior built specifically for rugged subsurface usage.


Change can be unpredictable. It can be uncertain, unexpected, and fleeting. 

Time is dependable. It's unchanging, expected, and consistent. It works like clockwork because it is, well, clockwork. 

But through all the inconsistencies the future holds, one thing stays constant: the basics of time. And with Sangin, we brought out the brilliance in the basics. Sangin is the constant through it all. 

For whoever you are and wherever life takes you, each piece we produce is put through a rigorous quality control inspection. We work tirelessly to ensure each timepiece at Sangin is as timeless and dependable as time itself.