Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsChristopher Ward C63 Sealander Extreme GMT

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

OSAR-D (Original SAR with Date) Automatic 46mm
MarathonOSAR-D (Original SAR with Date) Automatic 46mm
MSRP $2,500
C63 Sealander Extreme GMT
Christopher WardC63 Sealander Extreme GMT
MSRP $2,075

At a glance

13 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
C63 Sealander Extreme GMT40mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
C63 Sealander Extreme GMT56h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
C63 Sealander Extreme GMT150m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
C63 Sealander Extreme GMT$2,075

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
46mm
40mm
Thickness
13mm
12.05mm
Lug-to-Lug
43.5mm
48mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
150m

Crystal & Dial

1 specs
Lume
None
SLN X1 BL / GL

Movement

4 specs
Caliber
Sellita SW220-1
SW330-2
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56h
Complications
None
GMT

Pricing

1 specs
MSRP
$2,500
$2,075

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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.

Marathon OSAR-D (Original SAR with Date) Automatic 46mm

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm is widely regarded as a rugged and legible timepiece, featuring a familiar geometric dial with MaraGlo lume and a white dial with applied hour markers that enhance legibility. Owners and reviewers note its 300-meter water resistance and the reliable Swiss-made Sellita SW200-1 automatic movement with improved shock protection. The watch is described as large, thick, and heavy, with some owners finding it comfortable on the wrist while others note its substantial presence, particularly at a table. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 46mm for its rugged build and excellent legibility.

Christopher Ward C63 Sealander Extreme GMT

The Christopher Ward C63 Sealander Extreme GMT is widely praised as a competent and comfortable tool watch offering excellent value. Reviewers consistently highlight its impressive Globolight lume, providing excellent legibility, and its well-proportioned 41mm brushed steel case. The Sellita SW330-2 movement is noted as reliable, though its standard accuracy is stated as ±20 seconds per day, and its GMT functionality is considered less advanced than some alternatives. One owner notes the green dial can be an acquired taste, and hands and markers are considered less refined than those on significantly more expensive watches. The Christopher Ward C63 Sealander Extreme GMT is priced attractively at €1,895 on bracelet. Overall, owners and reviewers highly regard the Christopher Ward C63 Sealander Extreme GMT for its rugged, travel-ready design and impressive lume at its price point.

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