Side by side

CWC Mellor-72 Mechanical WatchvsSeiko 5 Sports Field series

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

Mellor-72 Mechanical Watch
CWCMellor-72 Mechanical Watch
MSRP $499
5 Sports Field series
Seiko5 Sports Field series
MSRP $450

At a glance

15 of 29 specs differ
Diameter
Mellor-72 Mechanical Watch38mm
5 Sports Field series39.4mm
Power Reserve
Mellor-72 Mechanical Watch40h
5 Sports Field series41h
Water Resistance
Mellor-72 Mechanical Watch50m
5 Sports Field series100m
MSRP
Mellor-72 Mechanical Watch$499
5 Sports Field series$450

Full specifications

Case

6 specs
Category
Field
GMT
Diameter
38mm
39.4mm
Thickness
12mm
13.6mm
Lug-to-Lug
42mm
47.9mm
Lug Width
18.5mm
20mm
Water Resistance
50m
100m

Crystal & Dial

4 specs
Crystal
Acrylic
Hardlex
Crystal Shape
Flat
Curved
Dial Color
CWC Mellor-72 Mechanical Watch
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Sellita SW210
4R34
Type
Manual
Automatic
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$499
$450

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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.

CWC Mellor-72 Mechanical Watch

The CWC Mellor-72 Mechanical Watch is widely praised for its authentic, utilitarian design and satisfying hand-wound Sellita SW210 movement, with owners noting a smooth winding action and excellent accuracy, including one report of zero seconds deviation over 24 hours. Reviewers highlight the era-appropriate dial and functional "piece of kit" appeal, though some find the 35mm case small by modern standards and legibility can be impacted by the domed hesalite crystal. Owners report issues with fixed lug bars being poorly filled in and fogging inside the crystal, while others state no water resistance problems. Overall, owners and reviewers appreciate the CWC Mellor-72 Mechanical Watch for its genuine military heritage and functional charm, despite some practical drawbacks.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series offers an accessible explorer-style watch with a 41mm stainless steel case, 100m water resistance, and a Hardlex crystal. The Field GMT model features a caller GMT complication powered by the 4R34 movement, while the standard Field models use the 4R36 with a 41-hour power reserve. Both models include Arabic numerals coated in LumiBrite and a lumed pearl on the bezel. On balance, the Seiko 5 Sports Field GMT is a well-regarded entry-level explorer watch for its price point, despite its office-style GMT function.

From video reviewers

The prominent five-sided GMT hand enhances legibility and adds a sophisticated aesthetic to the watch. The Seiko 5 Sports Field series offers similar functionality to the Explorer 2 at a lower price, making it a valuable option. Reviewers disagree on whether it's a missed opportunity for Seiko to release this model first, with one reviewer implying it would have been a more logical addition to their lineup.

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