Side by side

CWC T20 General Service Quartz WatchvsGruppo Gamma Field III GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

T20 General Service Quartz Watch
CWCT20 General Service Quartz Watch
MSRP $249
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

14 of 29 specs differ
Diameter
T20 General Service Quartz Watch38mm
Field III GMT40mm
Power Reserve
T20 General Service Quartz Watch40h
Field III GMT41h
Water Resistance
T20 General Service Quartz Watch50m
Field III GMT200m
MSRP
T20 General Service Quartz Watch$249
Field III GMT$459

Full specifications

Case

6 specs
Category
Field
GMT
Diameter
38mm
40mm
Thickness
12mm
14mm
Lug-to-Lug
42mm
48.5mm
Lug Width
18.5mm
22mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
Crystal
Acrylic
Sapphire
AR Coating
Inner
Yes
Dial Color
CWC T20 General Service Quartz Watch
Black

Movement

4 specs
Caliber
Ronda 515
Seiko Instruments NH38A
Type
Quartz
Automatic
Power Reserve
40h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$249
$459

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

CWC T20 General Service Quartz Watch

The CWC T20 General Service Quartz Watch is widely praised for its simple, clean, and classic look, with owners considering it a classy and comfortable field watch. Its 38mm tonneau case is seen by some as a cool retro piece representative of original MOD specifications, though others find this size too small for larger wrists. The watch is noted for keeping accurate time, with one owner reporting it as practical for everyday wear. It features a stainless steel case, sapphire crystal, and a Ronda 715 movement. A limitation mentioned is the fixed lugs, which restrict strap versatility. Overall, owners rate the CWC T20 General Service Quartz Watch highly for its classic military-inspired aesthetic and reliable timekeeping at an affordable price.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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