Side by side

Christopher Ward C63 Sealander Extreme GMTvsGlycine Airman No. 1 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
Airman No. 1 GMT
GlycineAirman No. 1 GMT
MSRP $2,800

At a glance

17 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
Airman No. 1 GMT36mm
Power Reserve
C63 Sealander Extreme GMT56h
Airman No. 1 GMT48h
Water Resistance
C63 Sealander Extreme GMT150m
Airman No. 1 GMT30m
MSRP
C63 Sealander Extreme GMT$1,850
Airman No. 1 GMT$2,800

Full specifications

Case

7 specs
Diameter
48mm
36mm
Thickness
12.05mm
11.6mm
Lug-to-Lug
48mm
Lug Width
22mm
20mm
Finish
Brushed + Bead-blasted + Sandblasted
Water Resistance
150m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Dial Color
Black
Silver
Indices
Applied
Lume
SLN X1 BL / GL
Luminous

Movement

4 specs
Caliber
SW330
SW330-2
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
48h
Complications
GMT, Moonphase, Day-date
GMT, Date

Pricing

1 specs
MSRP
$1,850
$2,800

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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.

Glycine Airman No. 1 GMT

Owners widely praise the Glycine Airman No. 1 GMT for its historical significance and attractive dial. However, some find the 36mm case size to be a bit small, and the GMT hand can be difficult to distinguish from the minute hand. The watch has a very limited 3ATM water resistance. Later versions feature sapphire crystals, differing from earlier plexi models. Overall, owners value the Glycine Airman No. 1 GMT for its historical appeal and dial design, despite minor legibility and sizing concerns.

From video reviewers

The case finishing and dial colors are praised. The value proposition is tied to a sale price, with questions about long-term competitiveness.

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