Side by side

Seiko King Seiko KSKvsNOMOS Glashütte Tangomat GMT

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

King Seiko KSK
SeikoKing Seiko KSK
MSRP $3,300
Tangomat GMT
NOMOS GlashütteTangomat GMT
MSRP $5,740

At a glance

16 of 29 specs differ
Diameter
King Seiko KSK38.6mm
Tangomat GMT40mm
Power Reserve
King Seiko KSK45h
Tangomat GMT42 hoursh
Water Resistance
King Seiko KSK50m
Tangomat GMT30m
MSRP
King Seiko KSK$3,300
Tangomat GMT$5,740

Full specifications

Case

8 specs
Category
Dress
GMT
Diameter
38.6mm
40mm
Thickness
10.7mm
10.9mm
Lug-to-Lug
45.8mm
50.5mm
Lug Width
19mm
20mm
Finish
Brushed and polished
Water Resistance
50m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
White
Indices
Applied

Movement

3 specs
Caliber
6L35
DUW 5201
Beat Rate
28,800 vph
21,600 vph
Power Reserve
45h
42 hoursh

Pricing

1 specs
MSRP
$3,300
$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.

Seiko King Seiko KSK

Owners and reviewers widely praise the King Seiko KSK for its exceptional dial and case finishing, often compared to higher-end brands, and its slim, retro design. The use of the Calibre 6L35 movement in some variants is seen as a significant upgrade, contributing to a refined feel, while others note the bracelet is unusually nice and the case offers a mix of brushed and polished finishes with sharp angles. However, some owners question the value proposition, citing misaligned screws and clasp components on their examples, and the standard 6R movement in some models is criticized as a disappointment for the price point. Accuracy figures range from +15/-10 seconds per day to +5 to +7 seconds per day, and water resistance is rated at 5 BAR or 50 meters. Overall, owners and reviewers find the King Seiko KSK to be a beautiful and classy watch with fantastic finishing, though some are divided on its value and movement choice 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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