Undone · Microbrand · Hong Kong

Undone Aquadeep GMT

Limited · 2026 · Diver, GMT

Undone Aquadeep Trigalight GMT with black DLC titanium case, ceramic bezel and textured black dial on a black strap
Photo: Undone
  • Undone Aquadeep Trigalight GMT front view with orange GMT hand and date at 3
  • Undone Aquadeep Trigalight GMT see-through caseback showing the NH34 GMT movement
  • Undone Aquadeep Trigalight GMT case side with crown guard
From $790
  • Seiko NH34A
  • 43.5 mm × 17.5 mm
  • Sapphire crystal
  • 500 m water resistance

Movement

Type
Automatic
Tier
Entry
Complications
Date, GMT
Frequency
21,600 bph
Power reserve
41 h
Hacking
Yes
Accuracy (factory)
-20 / +40 s/day

Case

Diameter
43.5 mm
Lug to lug
—
Thickness
17.5 mm
Lug width
—
Material
Titanium
Hardening
—
Water resistance
500 m
Crown
—
Case back
Display
Bezel
60-minute dive, ceramic insert
Colour coating
black DLC

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
—
Lume
Trigalight tritium tubes (dial marked T25)

Bracelet

Bracelet
Not offered

Straps

Strap 1
Nylon, Black fabric strap with orange stitching; Undone adds a free extra strap with every order

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
Trigalight—Msrp790 USD$7902026-10-24link

Variants

NameReferenceDialBezelConfigurationStatus
TrigalightAQD-DEP-TGWblack multi-layer "ocean-textured" dial with tritium-tube hands and indexes, orange GMT hand, 24-hour scale and date at 3black ceramic 60-minute dive bezelblack fabric strapLimited

About this entry

60% of key specs known. Missing: lug-to-lug, lug width, weight, hardening, AR coating, crown.

The titanium Aquadeep dive case with a Time Module (Seiko) NH34 GMT automatic, sold as the Aquadeep Trigalight GMT (listed July 2026, "Limited Release", no number of pieces given). The other titanium Aquadeep builds (NH35, NH36, NH37) are separate models. Spec table: "NH34 Automatic GMT", "Titanium Case, Black DLC Coating, Black Ceramic Bezel Insert", multi-layer ocean-textured dial, sapphire crystal, "43.5mm x 17.5mm" (the table does not say whether the 17.5mm includes the crystal), 500m / 1,640ft; the NH35 Aquadeep is stated as 43mm and 16.5mm. The description adds self-powered Trigalight tritium tubes on "every hand, index and GMT marker" (the dial is marked "T25"), and the photos show a date at 3, an orange GMT hand over a 24-hour scale and a see-through caseback. No lug-to-lug, lug width, weight, crown construction or bezel action is published. On sale on 2026-10-30 with a free extra strap. Editions. Trigalight (AQD-DEP-TGW, USD 790): black DLC titanium case and ceramic bezel, black sculpted "ocean-floor" dial, black fabric strap with orange stitching.

Last verified: 2026-10-30. Edit or correct this entry.

Sources