Side by side

CWC T20 General Service Quartz WatchvsHamilton Jazzmaster Thinline Small Second Quartz

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

At a glance

10 of 29 specs differ
Diameter
T20 General Service Quartz Watch38mm
Jazzmaster Thinline Small Second Quartz40mm
Power Reserve
T20 General Service Quartz Watch40h
Jazzmaster Thinline Small Second Quartz40h
Water Resistance
T20 General Service Quartz Watch50m
Jazzmaster Thinline Small Second Quartz50m
MSRP
T20 General Service Quartz Watch$249
Jazzmaster Thinline Small Second Quartz$745

Full specifications

Case

5 specs
Category
Field
Dress
Diameter
38mm
40mm
Thickness
12mm
7.35mm
Lug-to-Lug
42mm
46mm
Lug Width
18.5mm
20mm

Crystal & Dial

3 specs
Crystal
Acrylic
Sapphire
Dial Color
CWC T20 General Service Quartz Watch
Grey
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Ronda 515
980.163

Pricing

1 specs
MSRP
$249
$745

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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.

Hamilton Jazzmaster Thinline Small Second Quartz

Owners widely praise the Hamilton Jazzmaster Thinline Small Second Quartz for its excellent value around $300, thin profile at 7mm to 8.4mm, and clean dial design with superb applied hour numerals and dauphine hands. One owner finds its champagne dial particularly upscale. However, the lume is considered terrible, barely lasting a few minutes, and the crown is noted as very small and difficult to manipulate. On balance, owners rate the Hamilton Jazzmaster Thinline Small Second Quartz highly for its thinness and clean dial design at the price.

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