This Navy SEAL 3550 reinterprets one of Luminox's most iconic tactical timepieces with a sleeker, more ergonomic 44 mm design. Inspired by decades of collaboration with the U.S. Navy SEALs, it combines uncompromising ruggedness and dependable functionality built for demanding operational conditions.

Crafted with a lightweight CARBONOX™ case and unidirectional rotating bezel, the watch pairs with an integrated black nitrile rubber strap for enhanced wearability. A screw-down crown, anti-reflective sapphire crystal, and 200-meter water resistance provide reliable underwater and field performance.

Powered by a Swiss RONDA 515 quartz movement, the black dial features numeral styling in Liberator Sans Heavy, the official font of the U.S. Navy. Luminox Light Technology tubes guarantee continuous illumination and clear readability under any lighting conditions for up to 25 years.

Key Features

Brand	Luminox
Model Number	3551.BO
SKU	XS.3551.BO
Origin	Swiss Made
Movement	Swiss Quartz
Caliber	RONDA 515
Function	Time Date
Case Material	CARBONOX™
Case Diameter	44 mm
Case Height	16 mm
Case Back	316L Stainless Steel Screw-On
Bezel	Unidirectional Rotating
Crown	Screw-Down Crown
Crystal Material	Sapphire Crystal with Anti-Reflective Coating
Water Resistance	200 m / 20 ATM
Strap Material	Black Nitrile Rubber
Strap Buckle	Black CARBONOX™
Lug Width	24 mm
Weight	71 g
Illumination	Constant Glow for up to 25 Years
Approximate Battery Life	50 Months

Highlights

Swiss Made RONDA 515 quartz movement with time and date functions
Ultra-lightweight and durable 44 mm CARBONOX™ case and unidirectional bezel
Scratch-resistant sapphire crystal with anti-reflective coating
Luminox Light Technology providing continuous illumination for up to 25 years
Water resistant to 200 meters with protected screw-down crown
Comfortable black nitrile rubber strap with CARBONOX™ buckle

Frequently asked questions

What is the water resistance rating of the Luminox 3551.BO?

The watch features a water resistance rating of 200 meters (20 ATM), secured by a screw-down crown and screw-on stainless steel case back.

What movement powers this timepiece?

It is powered by a Swiss Made RONDA 515 quartz movement with an approximate battery life span of 50 months.

What materials are used for the case and crystal?

The watch is constructed with a lightweight CARBONOX™ case and unidirectional rotating bezel, fitted with an anti-reflective sapphire crystal.

How does the dial illumination work?

It utilizes Luminox Light Technology micro gas tubes that provide continuous, maintenance-free glow in all lighting conditions for up to 25 years.

What are the case dimensions and weight?

The case measures 44 mm in diameter and 16 mm in height, with a 24 mm lug width and a total weight of 71 g.

What type of strap is included with this watch?

It comes with a durable black nitrile rubber strap secured by a lightweight CARBONOX™ buckle.

Luminox Navy SEAL Diver's Quartz Watch