Side by side

Grand Seiko SLGH017vsNOMOS Glashütte Tangomat GMT

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

SLGH017
Grand SeikoSLGH017
MSRP $10,500
Tangomat GMT
NOMOS GlashütteTangomat GMT
MSRP $5,740

At a glance

17 of 29 specs differ
Diameter
SLGH01740mm
Tangomat GMT40mm
Power Reserve
SLGH01780h
Tangomat GMT42 hoursh
Water Resistance
SLGH017100m
Tangomat GMT30m
MSRP
SLGH017$10,500
Tangomat GMT$5,740

Full specifications

Case

8 specs
Category
Dress
GMT
Thickness
11.7mm
10.9mm
Lug-to-Lug
47mm
50.5mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Black
White
Indices
Applied

Movement

4 specs
Caliber
9SA5
DUW 5201
Beat Rate
28,800 vph
21,600 vph
Power Reserve
80h
42 hoursh
Jewels
25
26

Pricing

1 specs
MSRP
$10,500
$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.

Grand Seiko SLGH017

Grand Seiko SLGH017 owners and reviewers widely praise its impeccable finishing on the applied markers and handset, and its lightweight titanium case and bracelet. The high-beat 9SA5 movement is noted for its approximately 80-hour power reserve, with accuracy figures reported by owners ranging from +4 sec/day to +5 to -3 seconds per day, though some owners express concerns about accuracy deviating significantly from specifications. Some find the "Night Birch" dial stunning and appreciate the Evo 9 case design, while others note the dial texture appears less pronounced on its matte black surface and criticize the handset's proportions and lack of lume. The Grand Seiko SLGH017 is priced at €10,500. On balance, owners and reviewers rate the Grand Seiko SLGH017 highly for its lightweight titanium construction and impeccable finishing.

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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