Side by side

Christopher Ward C63 Sealander Extreme GMTvsLongines HYDROCONQUEST GMT

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
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

15 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
HYDROCONQUEST GMT41mm
Power Reserve
C63 Sealander Extreme GMT56h
HYDROCONQUEST GMT40h
Water Resistance
C63 Sealander Extreme GMT150m
HYDROCONQUEST GMT300m
MSRP
C63 Sealander Extreme GMT$1,850
HYDROCONQUEST GMT$3,350

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
48mm
41mm
Thickness
12.05mm
12.9mm
Lug-to-Lug
48mm
49.4mm
Lug Width
22mm
21mm
Finish
Brushed + Bead-blasted + Sandblasted
Brushed and polished
Water Resistance
150m
300m

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Black
Green
Lume
SLN X1 BL / GL
None

Movement

4 specs
Caliber
SW330
L844.5
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
40h
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$3,350

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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.

Longines HYDROCONQUEST GMT

Owners widely praise the Longines HYDROCONQUEST GMT for its excellent finishing, smooth winding action, and overall value, with some finding its build quality and colorways superior to higher-priced competitors. Reviewers and owners alike note its robustness as a traveler's dive watch with a true GMT movement. Some owners find the round markers at 6 and 9 disrupt dial symmetry, and the GMT hour markers are described as tiny and difficult to read. The date wheel can be mismatched on certain dial colors, and the bracelet clasp is noted as sharp by one reviewer. While some owners wish for a smaller case size, others find the 41mm comfortable. The bezel action is flagged as having bounce-back by one owner, though the brushed finish effectively hides wear. Overall, owners and reviewers rate the Longines HYDROCONQUEST GMT highly for its robust build and excellent value proposition.

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