Tool Watch Co. · Microbrand

Tool Watch Co. Lumecore GMT

In production · 2026 · GMT, Field

Tool Watch Co. Lumecore GMT Flint White, white full-lume dial with date at 6, on black FKM strap
Photo: Tool Watch Co.
  • Tool Watch Co. Lumecore GMT Flint White lume shot
  • Tool Watch Co. Goodman GMT Tactical, black PVD case, dune dial without date, on black FKM strap
  • Tool Watch Co. Goodman GMT Tactical lume shot
  • Tool Watch Co. Goodman GMT Utility, brushed steel case, dune dial with date at 6, on green FKM strap
From $595 to $645
  • Miyota 9075
  • 40 mm × 12.4 mm
  • Acrylic crystal
  • 100 m water resistance

Movement

Type
Automatic
Tier
Mid
Complications
Date, GMT
Frequency
28,800 bph
Power reserve
42 h
Hacking
Yes
Accuracy (factory)
-10 / +30 s/day

Case

Diameter
40 mm
Lug to lug
48 mm
Thickness
12.4 mm
Lug width
20 mm
Material
Steel
Hardening
—
Water resistance
100 m
Crown
Screw-down
Case back
—
Bezel
Fixed, 24-hour GMT
Finishing
Brushed

Crystal & dial

Crystal
Acrylic
Shape
Box, domed
Anti-reflective
—
Lume
C3 bi-colour (Goodman GMT editions); BGW9 full-lume dial and date wheel (Flint White)

Bracelet

Bracelet
Not offered

Straps

Strap 1
FKM rubber, quick release, Tapering FKM rubber strap with a machined TWCO.-branded buckle

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
Flint White—Msrp595 USD$5952026-10-24link
Goodman GMT Tactical—Msrp645 USD$6452026-10-24link
Goodman GMT Utility—Msrp645 USD$6452026-10-24link

Variants

NameReferenceDial
Flint WhiteGMT-LUM-FWWhite (full lume)
Goodman GMT TacticalGMT-GDM-TCDune
Goodman GMT UtilityGMT-GDM-UTDune

About this entry

80% of key specs known. Missing: weight, hardening, AR coating.

The brand sells this case and movement under two names: the Lumecore GMT (Flint White, June 2026, the Lumecore line's first mechanical watch) and the Goodman GMT (Tactical and Utility, February 2026), a collaboration with Los Angeles content creator Jory Goodman ("The Time Teller"). All three listings give the same specs and the photos show the same case, so the Goodman GMT editions are recorded as variants here. Brand specs (all three pages): brushed stainless steel case with an integrated fixed 24-hour bezel, 40mm, 48mm lug-to-lug, 12.4mm "height", 20mm lugs, 7mm screw-down crown, 100m; Miyota 9075 true GMT; high-gloss enamel dial; German-made double-domed box acrylic crystal; tapering FKM strap with a machined buckle. The brand doesn't say whether the 12.4mm height includes the domed crystal, and gives no weight, steel grade or caseback details. Flint White: fully lumed white dial (BGW9) with skeletonised black hands and a BGW9-lumed date wheel at 6; its page alone mentions quick-release spring bars; "First allocation sold out", shipping September to late October 2026 (sold out on 2026-10-30). Goodman GMT Utility: brushed steel, dune dial with date at 6, green strap, C3 bi-colour lume. Goodman GMT Tactical: black PVD-coated case and buckle per its description (its spec table, copied from the Utility, says "Brushed stainless steel"; the photos show the black case), dune dial with no date window ("clean no date dial", confirmed in the photos), black strap; its backstory text is shared with the Utility.

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

Sources