Christopher Ward C63 Sealander Extreme GMTvsGruppo Gamma Field III GMT Date

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Christopher Ward C63 Sealander Extreme GMT at true scale

C63 Sealander Extreme GMT

Gruppo Gamma Field III GMT Date at true scale

Field III GMT Date

Diameter

41mm

40mm

Lug-to-Lug

48mm

lowest

48.5mm

Thickness

12.1mm

lowest

14mm

Water Resistance

150m

200m

highest

Power Reserve

56h

highest

41h

MSRP

$2,075

$459

lowest

Movement

Sellita SW330-2

Seiko NH34

Case

4 specs
Diameter
41mm
40mm
Thickness
12.05mm
14mm
Lug-to-Lug
48mm
48.5mm
Water Resistance
150m
200m

Crystal & Dial

2 specs
AR Coating
n/a
Yes
Lume
SLN X1 BL / GL
Super-LumiNova

Movement

5 specs
Caliber
Sellita SW330-2
Seiko NH34
Beat Rate
4 vph
0 vph
Power Reserve
56h
41h
Jewels
25
0
Complications
GMT
GMT, Date

Pricing

1 specs
MSRP
$2,075
$459
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

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, with reviewers highlighting its impressive lume and tactical, travel-ready design. Owners and reviewers note its 41mm brushed steel case, Globolight lume, and Sellita SW330-2 movement, which is generally considered reliable despite a standard accuracy rating of ±20 seconds per day. Some find the green dial an acquired taste and consider its hands and markers less refined than those on significantly more expensive watches. On balance, owners and reviewers rate the Christopher Ward C63 Sealander Extreme GMT highly for its impressive lume and value proposition.

Gruppo Gamma Field III GMT Date

Owners widely praise the Gruppo Gamma Field III GMT Date for its incredible quality, awesome looks, and good value for the price. The watch features a 40mm brushed 316L stainless steel case, a box sapphire crystal, and a Seiko NH34 automatic movement. Some owners note accuracy figures ranging from -20 to +40 seconds per day, while others report +5 seconds per day. One user found the 40mm size unsuitable for small wrists. Overall, owners rate the Gruppo Gamma Field III GMT Date highly for its build quality and aesthetic appeal at its price point.

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