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Christopher Ward C63 Sealander RocksvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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

C63 Sealander Rocks
Christopher WardC63 Sealander Rocks
MSRP $1,405
Prospex Sea 1968 Heritage Diver's GMT
SeikoProspex Sea 1968 Heritage Diver's GMT
MSRP $1,500
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 Rocks

The Christopher Ward C63 Sealander Rocks is praised for its exceptional wearability and versatile design, with its 36mm case noted as fitting well on smaller wrists. Owners highlight the unique gloss dial and refined indices as particularly special, contributing to a quality that exceeds its price point. One owner reported the crown movement was less smooth than higher-end options, and the Sellita SW200 movement's rotor can be a bit loud. The Consort bracelet is noted as lighter and more conforming than the Bader, though some prefer the Bader for robustness. On balance, owners and reviewers rate the Christopher Ward C63 Sealander Rocks highly for its comfortable wearability and refined dial aesthetics at its price.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and comfortable wearability, offering good value for its price point. Owners and reviewers highlight the attractive silver/white sunray dial, blue ceramic bezel, and the premium feel of the improved bracelet clasp with excellent micro-adjustment. The Caliber 6R54 movement provides a 72-hour power reserve, and real-world accuracy often exceeds its stated range of +25 to -15 seconds per day, with some owners reporting figures around +3 to +5 seconds per day. However, the caller-style GMT functionality is a point of contention for some, who find the GMT scale difficult to read and prefer a flyer GMT at this price. Some also find the crown position at 4 o'clock undesirable, and a few note a lack of dial contrast or illegibility of the inner bezel.

At a glance

16 of 29 specs differ
Diameter
C63 Sealander Rocks42.87mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
C63 Sealander Rocks38h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
C63 Sealander Rocks150m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
C63 Sealander Rocks$1,405
Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

7 specs
Category
Diver
Diameter
42.87mm
42mm
Thickness
11.05mm
12.9mm
Lug-to-Lug
42.87mm
48.6mm
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
150m
200m
Caseback
Display
Solid

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Yellow
Black
Lume
SLN X1 BL C1
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
Sellita SW200-1
6R54
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
72h
Jewels
26
24
Complications
Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,405
$1,500
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