Side by side

Sugess Seestern S446 GMTvsSeiko Prospex Land Mechanical GMT

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

Seestern S446 GMT
SugessSeestern S446 GMT
MSRP $269
Prospex Land Mechanical GMT
SeikoProspex Land Mechanical GMT
MSRP $1,150

At a glance

14 of 29 specs differ
Diameter
Seestern S446 GMT40mm
Prospex Land Mechanical GMT39.5mm
Power Reserve
Seestern S446 GMT41h
Prospex Land Mechanical GMT72h
Water Resistance
Seestern S446 GMT100m
Prospex Land Mechanical GMT200m
MSRP
Seestern S446 GMT$269
Prospex Land Mechanical GMT$1,150

Full specifications

Case

5 specs
Diameter
40mm
39.5mm
Thickness
10mm
13.6mm
Lug-to-Lug
47mm
46.4mm
Lug Width
19mm
20mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
Tritium
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
Seiko NH34
6R54
Beat Rate
3 vph
28,800 vph
Power Reserve
41h
72h
Jewels
25
24
Complications
GMT, Moonphase, Date
None

Pricing

1 specs
MSRP
$269
$1,150

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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.

Sugess Seestern S446 GMT

Owners widely praise the Sugess Seestern S446 GMT for its outstanding finishing and materials at its price point, with specific mentions of the cream or ivory dial, polished hands, and clear crystal offering superb legibility. Accuracy is generally good, with one owner reporting +2/3 seconds per day from the Seiko NH34A movement. Some owners find the lume is not a strong point, and the bracelet clasp could benefit from more micro-adjustment, with screw pins noted as cheap. The GMT hand is described as flat by some, and opinions are split on the "Sugess" versus "Seestern" logo. Overall, owners rate the Sugess Seestern S446 GMT highly for its beautiful dial and excellent build quality for the price.

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of a classic design, comfortable bracelet, and attractive gray dial with a bubbly crystal. Reviewers highlight its handsome everyday sports watch appeal, solid specifications, and classic Seiko diver aesthetics, offering great value. However, community members are divided on the 6R movement's accuracy, with some reporting significant deviations even after regulation, while others find it competitive for the price. A point of contention is the GMT function, with some wishing for a "flyer" style local jump GMT instead of the "caller" type, and the internal compass bezel is described as finicky and difficult to read. Owners generally consider the Seiko Prospex Land Mechanical GMT overpriced at its retail price, suggesting better value is found on sale or closer to $700.

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