Side by side

Christopher Ward C60 Trident GMT 300vsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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

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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 C60 Trident GMT 300

Owners widely praise the Christopher Ward C60 Trident GMT 300's build quality and finishing, finding it a serious alternative to established Swiss brands. The 40mm size is considered comfortable with good wrist presence, and the lume is fantastic. The Sellita SW330-2 movement is noted as slim for a GMT, with one owner reporting accuracy of +5 seconds per week. Some owners dislike the older Bader bracelet and wish for better AR coating, while a reviewer noted the handset could be updated. On balance, owners and reviewers rate the Christopher Ward C60 Trident GMT 300 highly for its exceptional build quality and finishing at its price point.

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

The Seiko Prospex Marinemaster 1965 Heritage Diver's Watch is praised for its faithful re-creation of the 62MAS design, with reviewers noting improved wearability due to smaller case sizes (38mm to 40mm) and updated bracelets. Specific models feature a stainless steel case with super-hard coating, ceramic bezel, and a tool-free extension system on the bracelet. Accuracy figures vary, with one model rated at -5/+10 seconds per day and another at -10/+15 seconds per day, powered by movements like the Caliber 8L45 or 6L37 offering 72-hour or 46-hour power reserves respectively. Some reviewers point out drawbacks such as an unsigned winding crown, a lack of tool-free micro-adjust on the clasp for certain models, and a secondary GMT function on one variant. The price point, ranging from $2,800 to $3,600, is considered high by some, especially when compared to other Seiko or Grand Seiko offerings.

At a glance

15 of 29 specs differ
Diameter
C60 Trident GMT 30040mm
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm
Power Reserve
C60 Trident GMT 30056h
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h
Water Resistance
C60 Trident GMT 300300m
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m
MSRP
C60 Trident GMT 300$1,450
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

4 specs
Diameter
40mm
39.5mm
Thickness
11.7mm
12.3mm
Lug-to-Lug
47.5mm
47.2mm
Water Resistance
300m
200m

Crystal & Dial

5 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Dial Color
White
Indices
Applied
Lume
SLN X1 BL C1
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
Sellita SW330-2
Seiko 6L37
Beat Rate
4 vph
0 vph
Power Reserve
56h
45h
Jewels
25
26
Complications
GMT
None

Pricing

1 specs
MSRP
$1,450
$2,800
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