Side by side

Sinn 144 St DIAPALvsChristopher Ward C63 Sealander Extreme GMT

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

144 St DIAPAL
Sinn144 St DIAPAL
MSRP $4,428
C63 Sealander Extreme GMT
Christopher WardC63 Sealander Extreme GMT
MSRP $2,075

At a glance

19 of 29 specs differ
Diameter
144 St DIAPAL41mm
C63 Sealander Extreme GMT40mm
Power Reserve
144 St DIAPAL48h
C63 Sealander Extreme GMT56h
Water Resistance
144 St DIAPAL200m
C63 Sealander Extreme GMT150m
MSRP
144 St DIAPAL$4,428
C63 Sealander Extreme GMT$2,075

Full specifications

Case

8 specs
Category
Tool
GMT
Diameter
41mm
40mm
Thickness
14.2mm
12.05mm
Lug-to-Lug
48mm
Lug Width
20mm
22mm
Finish
bead-blasted
Brushed and polished
Water Resistance
200m
150m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Anthracite
Black
Indices
Applied
Lume
Luminescent
SLN X1 BL / GL

Movement

5 specs
Caliber
LJP 8000
SW330-2
Beat Rate
28,800 vph
4 vph
Power Reserve
48h
56h
Jewels
28
25
Complications
GMT, Date, Chronograph, Tachymeter
GMT

Pricing

1 specs
MSRP
$4,428
$2,075

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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.

Sinn 144 St DIAPAL

The Sinn 144 St DIAPAL is widely praised for its flawless bead-blasting, comfortable 41mm wearability, and legible presentation of information, including a pulsemeter and tachymeter scales. Owners appreciate its quality and confidence-inspiring feel, with one noting excellent timekeeping at 5 seconds slow over 4 days. However, the reset pusher is stiff, and strap options are limited by the integrated case. Some find the 12-hour UTC hand less intuitive, and one owner considers it too sporty for a sole daily watch. On balance, owners rate the Sinn 144 St DIAPAL highly for its robust build and functional, legible dial at its price point.

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. Reviewers consistently highlight its impressive Globolight lume, providing excellent legibility, and its well-proportioned 41mm brushed steel case. The Sellita SW330-2 movement is noted as reliable, though its standard accuracy is stated as ±20 seconds per day, and its GMT functionality is considered less advanced than some alternatives. One owner notes the green dial can be an acquired taste, and hands and markers are considered less refined than those on significantly more expensive watches. The Christopher Ward C63 Sealander Extreme GMT is priced attractively at €1,895 on bracelet. Overall, owners and reviewers highly regard the Christopher Ward C63 Sealander Extreme GMT for its rugged, travel-ready design and impressive lume at its price point.

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