Sentry
Sentry
Sentry
Sentry
Sentry
Sentry
Sentry
Sentry

Sentry

Save 48%
¥29,100 ¥55,900
or 3 × ¥9,700 with Klarna

Not sure of your size? Select size 0 at checkout. That secures your place in the queue and we'll post you a free ring si

Width 8mm
Ring Size (US)
Size guide
Greyed sizes are made to order (2–3 months). Don't know your size? Choose the free ring sizer.
Gift Box
The Sentry

Sleepless. Silent. Sworn.

Sentry is black tungsten cut with a line of steel blue, the ring of the one who stands watch while everyone else sleeps.

Strength is not always the sword. Sometimes it is the man at the door who makes sure the sword is never needed.

A ring for the man who protects his own, and for the one who sleeps easy because he does.

They rest because you do not. Wear the Sentry.

Free tracked delivery, worldwide
Lifetime warranty on every ring
Ships in a Rokkard gift box

Machined from a single block of tungsten carbide and inlaid by hand. Scratch-proof, hypoallergenic, and backed for life.

Wipe with a soft cloth. No plating to wear, no polishing required.

Free worldwide shipping. In-stock sizes dispatch in 2–3 days; made-to-order sizes take 2–3 months. 30-day returns.

Order our free ring sizer, or use the size guide. Tungsten cannot be resized — we exchange instead.

Every order ships in the signature box. Upgrade to velvet or a wood & leather keepsake case above.

Sentry ¥29,100 ¥55,900
8mm / 0

The Sentry. Anatomy

Black watch.
Blue signal.

Five chapters. One ring. Brushed black holding twin electric blue lines. Built for the man who holds the line when others break.

Macro of the Sentry ring's two thin parallel centred electric-blue grooves on brushed black
Sentry ring showing brushed black face, polished bevelled edges and twin blue grooves
The Sentry ring resting against dark rock, brushed black body and twin electric-blue grooves visible
Sentry ring angled on dark stone showing the polished black blank interior
Black latex gloved hands presenting the Sentry ring, twin blue grooves and black interior visible

Chapter 01. The twin lines

Two blue grooves.
Centred. Locked.

Two thin parallel electric-blue grooves cut the centre. Even. Exact. A twin signal under black armour. No single stripe. No drift. The watch never sleeps.

Twin centred electric-blue grooves

Worn hard. Rated harder.

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