Side by side

Grand Seiko SLGH017vsGruppo Gamma Field III GMT

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

SLGH017
Grand SeikoSLGH017
MSRP $10,500
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

10 of 29 specs differ
Diameter
SLGH01740mm
Field III GMT40mm
Power Reserve
SLGH01780h
Field III GMT41h
Water Resistance
SLGH017100m
Field III GMT200m
MSRP
SLGH017$10,500
Field III GMT$459

Full specifications

Case

5 specs
Category
Dress
GMT
Thickness
11.7mm
14mm
Lug-to-Lug
47mm
48.5mm
Material
Titanium
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

1 specs
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
9SA5
Seiko Instruments NH38A
Power Reserve
80h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$10,500
$459

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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.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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