Side by side

Christopher Ward C63 Sealander Extreme GMTvsFormex Essence ThirtyNine

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
Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390
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.

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is praised for its impressive build quality and value, featuring a patented case suspension system for comfort and protection. It houses a COSC-certified Sellita SW200-1 movement with a 38-hour power reserve and a tool-free strap quick-release system. A minor inconvenience noted is the specific closing order of the clasp. On balance, reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value at its price point.

From video reviewers

The case suspension system enhances comfort and the COSC-certified movement is a strong feature. The bracelet exhibits noticeable rattle. Reviewers disagreed on the ideal case size, with some preferring the 39mm and others the 41mm.

At a glance

15 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
Essence ThirtyNine39mm
Power Reserve
C63 Sealander Extreme GMT56h
Essence ThirtyNine41h
Water Resistance
C63 Sealander Extreme GMT150m
Essence ThirtyNine100m
MSRP
C63 Sealander Extreme GMT$1,850
Essence ThirtyNine$2,390

Full specifications

Case

7 specs
Category
GMT
Dress
Diameter
48mm
39mm
Thickness
12.05mm
10mm
Lug-to-Lug
48mm
45mm
Lug Width
22mm
20mm
Finish
Brushed + Bead-blasted + Sandblasted
Brushed and polished
Water Resistance
150m
100m

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Black
Space Ghost
Lume
SLN X1 BL / GL
Super-LumiNova

Movement

4 specs
Caliber
Sellita SW330-2
Sellita SW200-1
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
41h
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$2,390
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