Side by side

Seestern S446 GMTvsNOMOS Glashütte Tangomat GMT

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

S446 GMT
SeesternS446 GMT
MSRP $299
Tangomat GMT
NOMOS GlashütteTangomat GMT
MSRP $5,740

At a glance

17 of 29 specs differ
Diameter
S446 GMT39.5mm
Tangomat GMT40mm
Power Reserve
S446 GMT41hh
Tangomat GMT42 hoursh
Water Resistance
S446 GMT100m
Tangomat GMT30m
MSRP
S446 GMT$299
Tangomat GMT$5,740

Full specifications

Case

7 specs
Diameter
39.5mm
40mm
Thickness
13mm
10.9mm
Lug-to-Lug
47mm
50.5mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Domed
AR Coating
Inner
Dial Color
Cream
White
Indices
Applied

Movement

5 specs
Caliber
Seiko NH34A GMT
DUW 5201
Beat Rate
3 vph
21,600 vph
Power Reserve
41hh
42 hoursh
Jewels
24
26
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$5,740

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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.

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.

NOMOS Glashütte Tangomat GMT

Owners and reviewers widely praise the NOMOS Glashütte Tangomat GMT for its elegant Bauhaus design, detailed finishing, and true in-house GMT movement, with many considering it excellent value. The watch's simplicity and user-friendly world time dial are highlighted as refreshing departures from busy designs. Some owners find the 40mm case wears larger than expected, and the GMT function, which uses a disk adjusted by a pusher, is noted as requiring manual adjustment and can be less convenient than a traditional hour hand for some users. One owner reported a daily accuracy drift of 25-35 seconds, while another experienced accidental pressing of the timezone pusher. On balance, owners and reviewers rate the NOMOS Glashütte Tangomat GMT highly for its unique in-house GMT complication and refined aesthetic at an accessible price point.

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