Side by side

Sinn 358 DIAPALvsChristopher Ward C63 Sealander Extreme GMT

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

358 DIAPAL
Sinn358 DIAPAL
MSRP $4,255
C63 Sealander Extreme GMT
Christopher WardC63 Sealander Extreme GMT
MSRP $2,075

At a glance

18 of 29 specs differ
Diameter
358 DIAPAL42mm
C63 Sealander Extreme GMT40mm
Power Reserve
358 DIAPAL48h
C63 Sealander Extreme GMT56h
Water Resistance
358 DIAPAL100m
C63 Sealander Extreme GMT150m
MSRP
358 DIAPAL$4,255
C63 Sealander Extreme GMT$2,075

Full specifications

Case

7 specs
Category
Tool
GMT
Diameter
42mm
40mm
Thickness
15mm
12.05mm
Lug-to-Lug
48mm
Finish
satinized
Brushed and polished
Water Resistance
100m
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 L100
SW330-2
Beat Rate
28,800 vph
4 vph
Power Reserve
48h
56h
Jewels
26
25
Complications
GMT, Date, Chronograph
GMT

Pricing

1 specs
MSRP
$4,255
$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 358 DIAPAL

The Sinn 358 DIAPAL is widely praised as a handsome, unfussy tool watch with excellent legibility and solid construction, featuring a reliable and exact second timezone complication. Owners and reviewers highlight its DIAPAL oil-free escapement and Ar-Dehumidifying technology for contributing to its accuracy, and note the 42mm brushed stainless steel case is well-sized. One reviewer flags the skeletonized GMT hand as sometimes lacking legibility. Overall, owners and reviewers rate the Sinn 358 DIAPAL highly for its robust build and practical travel watch functionality.

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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