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EXCLUSIVE
HOW BRIGHT IS A NITE WATCH
IN THE DARK, AT DUSK & IN DAYLIGHT?
WHAT TRITIUM ACTUALLY IS
Most watch lume gives up just when you
need it most. Tri琀椀um doesn’t. Inside each
watch are sealed glass tubes containing
tri琀椀um gas and a phosphor coa琀椀ng. As
tri琀椀um undergoes natural beta decay, its
electrons excite the phosphor, producing a
steady, con琀椀nuous glow. No charging, no
bu琀琀on press, no ba琀琀ery. It just glows, all day
and all night, for up to 20 years.
Every tube we use is sourced from mbmicrotec in Switzerland, the global
benchmark for GTLS technology and
the manufacturer trusted by military and
HAWK GREEN TRITIUM ILLUMINATION VIALS
professional services worldwide. If you want
the full technical detail, our website covers
it thoroughly. For now, the short version
ma琀琀ers most: it’s completely passive, selfpowered, and needs nothing from you.
MX10 BLUE/ORANGE TRITIUM ILLUMINATION VIALS
Green tubes are the brightest op琀椀on for
human low-light percep琀椀on, which is why
they’re standard across most professional
and military applica琀椀ons. Tri琀椀um watch
brightness also varies by tube colour.
White and ice blue tubes are available
across selected models and remain
legible in darkness, but green consistently
outperforms them in genuine low-light
condi琀椀ons. Our T100-rated models deliver
significantly more brightness than standard
tri琀椀um, providing fast, reliable orienta琀椀on
when ambient light is near zero. That’s the
ra琀椀ng in both the Hawk Nigh琀昀all and the
Alpha Z Blackout, for exactly this reason.
At dusk, in dark rooms such the cinema, night
club and restaurants, or in a vehicle cab with
the lights off, tri琀椀um remains clearly legible
without any effort. Standard luminous
paint fades within a few hours of darkness.
Tri琀椀um reads the same at midnight as it does
at 10pm. That’s the prac琀椀cal difference, and
it’s the reason professionals who depend
on accurate 琀椀mekeeping choose tri琀椀um
consistently over tradi琀椀onal lume. Our full
tri琀椀um vs tradi琀椀onal lume breakdown ar琀椀cle
on our website covers this in more detail if
you’re weighing up the op琀椀ons.
BRIGHTNESS OVER TIME
Tri琀椀um tubes don’t switch off, they decay.
A ques琀椀on we hear o昀琀en is how long
does tri琀椀um watch illumina琀椀on actually
last in prac琀椀ce. Over the rated 20-year
lifespan, brightness reduces gradually as the
tri琀椀um decays. A ten-year-old tube will be
no琀椀ceably dimmer than a new one, though
s琀椀ll func琀椀onal in genuine darkness. Worth
knowing if you’re considering a secondhand tri琀椀um watch.
When the MX10 was first supplied to UK
Special Forces, the logic was simple: kit that
relies on charging or ba琀琀eries will eventually
fail. Tri琀椀um doesn’t.
COMPLETE DARKNESS:
WHERE TRITIUM EXCELS
TWILIGHT AND LOW-LIGHT:
OR IN TOTAL DARKNESS
Three things really ma琀琀er: you can read
This is the environment tri琀椀um is built for.
In genuinely dark condi琀椀ons, whether that’s
a tent with no moonlight, a building with
failed power, or opera琀椀ng below the surface
at depth, you raise your wrist and read the
琀椀me instantly. No pre-ac琀椀va琀椀on required.
Most watch checks happen at dusk, in a
darkened vehicle, or in a bivvy at night are
the condi琀椀ons tri琀椀um illumina琀椀on is meant
for, and it handles all of them without
requiring any ac琀椀on by the wearer.
MX10 HORIZON
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BigCarp 71
NITE THE ORIGINAL BRITISH TRITIUM WATCH COMPANY
