Side by side

CWC T20 General Service Quartz WatchvsSeiko Prospex Rotocall

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
Prospex Rotocall
SeikoProspex Rotocall
MSRP $550

At a glance

11 of 29 specs differ
Diameter
T20 General Service Quartz Watch38mm
Prospex Rotocall37mm
Power Reserve
T20 General Service Quartz Watch40h
Prospex Rotocall40h
Water Resistance
T20 General Service Quartz Watch50m
Prospex Rotocall100m
MSRP
T20 General Service Quartz Watch$249
Prospex Rotocall$550

Full specifications

Case

6 specs
Category
Field
Sport
Diameter
38mm
37mm
Thickness
12mm
10.6mm
Lug-to-Lug
42mm
43.5mm
Lug Width
18.5mm
20mm
Water Resistance
50m
100m

Crystal & Dial

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

Movement

1 specs
Caliber
Ronda 515
A824

Pricing

1 specs
MSRP
$249
$550

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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.

Seiko Prospex Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

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