Side by side

Christopher Ward C63 Sealander Extreme GMTvsSternglas Naos Pro GMT Automatik

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

C63 Sealander Extreme GMT
Christopher WardC63 Sealander Extreme GMT
MSRP $1,850
Naos Pro GMT Automatik
SternglasNaos Pro GMT Automatik
MSRP $863

At a glance

15 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
Naos Pro GMT Automatik38mm
Power Reserve
C63 Sealander Extreme GMT56h
Naos Pro GMT Automatik42h
Water Resistance
C63 Sealander Extreme GMT150m
Naos Pro GMT Automatik50m
MSRP
C63 Sealander Extreme GMT$1,850
Naos Pro GMT Automatik$863

Full specifications

Case

6 specs
Diameter
48mm
38mm
Thickness
12.05mm
11mm
Lug-to-Lug
48mm
42mm
Lug Width
22mm
20mm
Finish
Brushed + Bead-blasted + Sandblasted
Brushed and polished
Water Resistance
150m
50m

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Black
Lume
SLN X1 BL / GL
Luminova Punkte

Movement

5 specs
Caliber
SW330
Miyota 9075
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
42h
Jewels
25
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$863

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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.

Christopher Ward C63 Sealander Extreme GMT

Owners and reviewers widely praise the Christopher Ward C63 Sealander Extreme GMT for its excellent value, tactical and travel-ready design, and impressive lume, with the black dial being a collective favorite. Its 41mm brushed steel case is noted for comfort and wearability, complemented by a well-proportioned design and excellent legibility. The watch features a Sellita SW330-2 movement with a 56-hour power reserve and 150m water resistance, including a shock-absorbing mount. Some find its refinement slightly less than pricier alternatives, and its GMT movement is considered less practical than a flyer GMT. On balance, the Christopher Ward C63 Sealander Extreme GMT is highly regarded by owners and reviewers for its compelling blend of features, rugged design, and exceptional value.

Sternglas Naos Pro GMT Automatik

Owners report the Sternglas Naos can feel underwhelming with a cheap feel and hands resembling office printer output, with some finding it wears smaller than expected and looks like a toy, though others appreciate its understated design. Reviewers highlight the Argo Automatic variant as a compelling sub-€400 mechanical watch with a colorful dial and practical date wheel, suitable for new collectors, featuring a 38mm case and a Miyota 8215 movement. On balance, the consensus is that the Sternglas Naos offers a mixed ownership experience, with its value proposition and entry-level appeal being its strongest points for some.

From video reviewers

The Sternglas Naos Pro GMT Automatik features a clean Bauhaus design that sets it apart from other GMT watches. A notable weakness is the watch's bezel action, which is not as smooth as some reviewers would have liked. Reviewers disagree on the watch's case size, with one reviewer stating it's slightly larger than the original Naos Automatic, while another reviewer doesn't mention this aspect at all.

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