Front of an ARMR Sentinel silver pendant, men's jewellery

The Sentinel Pendant Necklace (Silver)

INCLUDES FREE PREMIUM GIFT BOX

$68.00

Other colours available

Built to keep its shine
Made to move with you
Kind to skin
Made to be worn every day

Bold, grounded, and quietly powerful. Featuring a deep black onyx centre, this piece is a symbol of inner strength and calm focus. Designed to be worn as everyday armour—a reminder that true power doesn't shout, it stands firm. Stillness is strength.

Highest grade 316L stainless steel which is a highly durable, recyclable metal
Highly polished

Every ARMR piece comes with our Lifetime Guarantee. If your jewellery is accidentally damaged, we'll repair or replace it. It doesn't cover lost or stolen items, or damage from third-party repairs or alterations. Read the full terms.

CARE

Our stainless steel is highly corrosion-resistant and made for real life: showers, the gym and the beach are all fine. To keep it at its best, rinse after salt water or chlorine, put perfume and lotions on first, and wipe it with a soft lint-free cloth. On gold pieces, avoid abrasive cleaners, as the 18k gold PVD coating can wear with heavy friction.

At ARMR, sustainability is approached through material, craftsmanship, longevity and responsible sourcing. We believe jewellery should be created to last, both in quality and design, rather than follow fast-moving trends.

That's why we chose stainless steel as the base metal for our pieces. Stainless steel is an incredible metal that is super durable but also 100% recyclable.

We're working hard to ensure all of our packaging is as sustainable as possible too. This is an ongoing process and is being reviewed all the time.

We believe in creating modern symbols of resilience. Pieces designed to be worn, loved and kept for years to come.

All orders are shipped from the UK.

UK (using Royal Mail)

Tracked - 48 Hours (aim 2-3 working days) - FREE
Tracked - 24 Hours (aim 1-2 working days) - £3.99 or FREE above £75
Special Delivery, next working day by 1pm: £7.99. Order by 1pm UK time.

Europe (using Royal Mail)

International Standard: (5-7 working days) - €8.99 or FREE above €100

Rest of the World (using Royal Mail)

International Standard - $10.99 or FREE above $100

Shipping Information

Dispatch: orders placed by 2pm UK time (Mon–Fri) ship the same day. Later orders ship the next working day.

All orders are fully tracked. You will receive your tracking once dispatched.

Estimated shipping time begins from the day your order is dispatched.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

Built to keep its shine

Hard-wearing stainless steel that resists tarnish

Made to move with you

Resists everyday water, heat and sweat

Kind to skin

A popular choice for sensitive skin

Stillness. Strength. Shadow.

There’s power in the quiet. In the calm before the storm. In the moments when you hold your ground—not because you’re loud, but because you’re solid. The Sentinel Pendant is forged from that spirit.

Featuring a striking rectangular slab of deep black onyx, this pendant doesn’t ask for attention—it commands it. For centuries, onyx has been worn as a stone of grounding and protection, carried by warriors and leaders to keep their focus sharp and their feet steady. Its dark surface is a mirror to your inner resolve—strong, measured, and unwavering.

The pendant’s bold shape speaks of balance and boundaries. It doesn’t bend to trends. It doesn’t pretend to be anything it’s not. It stands for what you stand for: quiet confidence, heritage, and the strength to move forward no matter the weight you carry.

Suspended from a refined link chain, the piece is made to move with you—through city streets, early mornings, late nights, and everything in between. It’s resistant to tarnish, water and heat, and built for everyday wear.

Worn as armour. Carried as truth. The Sentinel is a reminder: sometimes the most powerful thing you can do... is stand still.

ARMR Jewellery premium gift box for necklaces and bracelets

FREE PREMIUM GIFT BOX

Every ARMR piece deserves to arrive with the same sense of purpose as the jewellery itself. Our premium ARMR gift box is included free with every purchase, giving your piece a considered finish from the moment it arrives. Ready to gift, or simply something special to keep for yourself.

We will also send you a free Origins keepsake pouch - read about our name change.

What's this piece made of?

316L Stainless Steel

Built to Last

Our jewellery’s made from 316L stainless steel, the good stuff. It’s tough, corrosion-resistant, and shrugs off everyday wear like it’s nothing. Resistant to tarnish and fading. Just solid pieces that stay sharp over time.

Kind to Skin

Got sensitive skin? 316L stainless steel is a popular choice for it. Everyone’s different though, so if you have a known metal allergy, check with your doctor before you buy.

Looks Good, Costs Less

Premium shouldn’t mean pricey. Stainless steel gives you style, strength, and staying power, without the cost of precious metals. That means great-looking jewellery that won’t rinse your wallet.

PART OF THE JOURNEY COLLECTION

The Journey Collection is all about movement, meaning and the path you’re on. These men’s pendant necklaces are designed to reflect identity, growth and everything that shapes who you are.

From compass pendants to symbolic tags, each piece is made from 316L stainless steel for everyday wear — water-resistant, tarnish-resistant and backed by a lifetime guarantee. Whether you’re marking a milestone, gifting someone starting their own journey, or just want a necklace that means more, this collection is for men and boys. Built to last. Made to move with you.

FREQUENTLY ASKED QUESTIONS

WHAT IS YOUR JEWELLERY MADE FROM?

Our jewellery is made from polished 316L stainless steel. Our gold pieces have an 18k gold PVD coating, which is harder-wearing than traditional plating.

DO I NEED TO TAKE SPECIAL CARE OF MY JEWELLERY?

Not really. Our pieces are made for real life, so showers, the gym and the beach are all fine. A wipe with a soft cloth brings the shine back, and a rinse after salt water or chlorine helps them last.

Obviously, don't go nuts and start scraping your jewellery across rocks and hitting it with a hammer. If you keep to normal day to day wear then it'll be fine.

WILL IT TURN MY SKIN GREEN?

Our pieces are made with stainless steel (316L grade), a popular choice for sensitive skin.

Every one is different, so we cannot guarantee you won't have a reaction.

If you have a known metal allergy, check with your doctor before you buy.

WHERE CAN I WEAR THE JEWELLERY

Our pieces are made for everyday use: work, the gym, the shower, holidays and the beach. They are strong, durable and tarnish resistant.

All of our products are perfect vacation (vacay) and holiday jewellery pieces. Suitable to wear in the sea and swimming pools, lounging on the beach, relaxing and celebrating. Wherever you're from, wherever you're going, we've got you covered.

A rinse after salt water or chlorine keeps them at their best.

WHAT'S YOUR RETURN POLICY?

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

See our Refund Policy for more information.