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40 mm · 48.5 mm lug-to-lug
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Gruppo Gamma

VENTURO Field Watch GMT - Black Dial Blue Lume

FieldGMT

Lugs stay on wrists from about 6.5 in (lug-to-lug rule of thumb)

$459In stock

Last checked Oct 26, 2026

View on Gruppo Gamma’s site ↗

From Gruppo Gamma

Track different time zones with one quick glance, for work or travel. Clean, back-to-basics design. Evergreen matte black dial in a 40mm 316L stainless steel case, d esigned to look great with integrated bracelet or various leather, canvas and rubber straps. Prominent display of hours, minutes, seconds, a second time zone, and the blue glow of premium Swiss Super-LumiNova ensure readability at all times. Water resistance of 200m/ 660ft ensures it can keep up with your everyday activities. The Field Watch GMT is powered by the reliable NH34A automatic movement from Seiko Instruments, Japan.

Specifications

Details and photos come from Gruppo Gamma’s website, last checked Oct 26, 2026. Specs were read automatically and may contain mistakes.

Case

Diameter
40 mm
Lug-to-lug
48.5 mm
Thickness
14 mm
Thickness incl. crystal
Not listed
Lug width
22 mm
Material
316L steel

Movement

Type
Automatic
Caliber
Seiko NH34
Power reserve
41 h
Functions
Not listed

Crystal and bezel

Crystal
Sapphire
Bezel
Not listed

Water resistance

Rated to
200 m

Dial and lume

Dial
black
Lume
Not listed

Strap

Strap
other
Every spec Gruppo Gamma lists
Bezel
Fixed, with 24-hour markers
Color
Dark blue
Crown
Screw-down
Hands
Silver hours, minutes & seconds, red GMT
Buckle
Stainless steel pin buckle
Height
14mm
Length
130*80mm
Calibre
Seiko Instruments NH34A
Crystal
Sapphire, box-shaped, anti-reflective
Accuracy
-20~+40 s/day Strap Material: Stainless steel
Caseback
Solid
Diameter
40mm
Material
316L stainless steel, brushed
Beat rate
21,600bph
Dial type
Black, thick lume application
Functions
Hours, minutes, seconds & 2nd time zone
Lug width
22mm
Lug-to-lug
48.5mm
Wrist size
160mm/ 6.25" ~ 230mm/ 9"
Case Material
316L stainless steel, brushed
Movement type
Automatic
Power reserve
41h
Specificities
Swiss Super-LumiNova® Movement Functions: Hours, minutes, seconds & 2nd time zone
Dial Dial type
Black, thick lume application
Strap Material
Stainless steel
Water resistance
200m/ 660ft Dial Dial type: Black, thick lume application
Movement Functions
Hours, minutes, seconds & 2nd time zone
Additional Strap Material
FKM rubber

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Gruppo Gamma VENTURO Field Watch GMT - Black Dial Blue Lume · Lugworthy