Side by side

CWC GS Sapphire WatchvsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

GS Sapphire Watch
CWCGS Sapphire Watch
MSRP $333
JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250

At a glance

13 of 29 specs differ
Diameter
GS Sapphire Watch36.5mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
GS Sapphire Watch40h
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
GS Sapphire Watch200m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
GS Sapphire Watch$333
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

7 specs
Category
Field
Diver
Diameter
36.5mm
46mm
Thickness
12mm
18mm
Lug-to-Lug
46mm
55mm
Lug Width
19mm
22mm
Material
Stainless Steel
316L Stainless Steel (Anthracite IP)
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
CWC GS Sapphire Watch, Black with Black Dial
Anthracite
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW220-1
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$333
$3,250

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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 GS Sapphire Watch

Owners widely praise the CWC GS Sapphire Watch for its extreme wearability, legible dial with a minute track, and robust build, embodying military heritage in a contemporary field watch. Its subtle 36.5mm size and 200m water resistance with a screw-down crown are frequently highlighted as practical strengths, with some owners appreciating the sapphire crystal over acrylic. The watch is noted as a "strap monster" with high-quality included straps. Some owners find the CWC GS Sapphire overpriced, and fixed spring bars are a noted drawback, though justified by military specification, presenting a challenge for thicker straps. Overall, owners rate the CWC GS Sapphire highly for its practical design, military heritage, and wearability at its price point.

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Owners widely praise the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic as a tough, underrated tool watch with lifestyle appeal, highlighting its robust build and tritium lume for excellent legibility. However, its 46mm size is a common criticism, with some finding it heavy and top-heavy, and the OEM rubber strap stiff. One owner noted the watch runs about 10 seconds fast after three days, and the ETA 2836-2 movement offers approximately two days of power reserve. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust tool-watch build and legibility, despite its substantial size.

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