Side by side

CWC Mellor-72 Mechanical WatchvsSeestern S446 GMT

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
S446 GMT
SeesternS446 GMT
MSRP $299
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.

Seestern S446 GMT

Owners widely praise the Seestern S446 GMT for its stunning finishing and extreme value, with a sapphire crystal and adjustable clasp. The winding action is noted as buttery smooth, and the 39.5mm case size is considered very wearable. Some owners, however, flag the lume as a weak point and one owner found the bracelet clasp lacked sufficient micro-adjustment. The Seestern S446 GMT is considered an extreme value for the dollar. Overall, owners rate the Seestern S446 GMT highly for its exceptional finishing and value proposition at its price point.

At a glance

18 of 29 specs differ
Diameter
Mellor-72 Mechanical Watch38mm
S446 GMT39.5mm
Power Reserve
Mellor-72 Mechanical Watch40h
S446 GMT41hh
Water Resistance
Mellor-72 Mechanical Watch50m
S446 GMT100m
MSRP
Mellor-72 Mechanical Watch$499
S446 GMT$299

Full specifications

Case

7 specs
Category
Field
GMT
Diameter
38mm
39.5mm
Thickness
12mm
13mm
Lug-to-Lug
42mm
47mm
Lug Width
18.5mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

4 specs
Crystal
Acrylic
Sapphire
Crystal Shape
Flat
Domed
Dial Color
CWC Mellor-72 Mechanical Watch
Cream
Lume
Super-LumiNova
None

Movement

6 specs
Caliber
Sellita SW210
Seiko NH34A GMT
Type
Manual
Automatic
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$499
$299
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