Side by side

CWC T20 General Service Quartz WatchvsSeiko Diamond Collection

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
Diamond Collection
SeikoDiamond Collection
MSRP $475
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.

Seiko Diamond Collection

Owners widely praise the Seiko Diamond Collection for its stunning beauty, particularly highlighting the 14 diamonds and the captivating mother-of-pearl dial, which reviewers note is difficult to photograph accurately. The watch is frequently cited as offering excellent value for its fit and finish, with specific features like sapphire crystal and 100m water resistance contributing to its appeal. One owner reports great durability and accuracy, with a solar charging reserve, though notes that the gold plating on the bracelet shows some fading from desk work. Overall, owners rate the Seiko Diamond Collection highly for its dazzling aesthetics and perceived value.

At a glance

10 of 29 specs differ
Diameter
T20 General Service Quartz Watch38mm
Diamond Collection27mm
Power Reserve
T20 General Service Quartz Watch40h
Diamond Collection40h
Water Resistance
T20 General Service Quartz Watch50m
Diamond Collection50m
MSRP
T20 General Service Quartz Watch$249
Diamond Collection$475

Full specifications

Case

5 specs
Category
Field
Dress
Diameter
38mm
27mm
Thickness
12mm
7.5mm
Lug-to-Lug
42mm
46mm
Lug Width
18.5mm
6mm

Crystal & Dial

3 specs
Crystal
Acrylic
Hardlex
Dial Color
CWC T20 General Service Quartz Watch
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

1 specs
Caliber
Ronda 515
V137

Pricing

1 specs
MSRP
$249
$475
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