Side by side

Sternglas Naos SolarvsGruppo Gamma Field III GMT

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

Naos Solar
SternglasNaos Solar
MSRP $323
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

15 of 29 specs differ
Diameter
Naos Solar38mm
Field III GMT40mm
Power Reserve
Naos Solar
Field III GMT41h
Water Resistance
Naos Solar50m
Field III GMT200m
MSRP
Naos Solar$323
Field III GMT$459

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
38mm
40mm
Thickness
10mm
14mm
Lug-to-Lug
42mm
48.5mm
Lug Width
20mm
22mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
Lume
Luminova Punkten
Super-LumiNova

Movement

5 specs
Caliber
Seiko VJ76
Seiko Instruments NH38A
Type
Solar
Automatic
Power Reserve
41h
Jewels
25
Complications
None
GMT

Pricing

1 specs
MSRP
$323
$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.

Sternglas Naos Solar

Owners widely praise the Sternglas Naos Solar for its elegant Bauhaus-inspired minimalist dial, slim profile, and value for money. The scratch-resistant curved sapphire crystal and functional date mechanism are noted as durable features, with one owner reporting good wear over a year. The solar power and accuracy are highlighted as practical advantages over automatic movements, which some find loud. However, opinions are split, with some owners finding the watch underwhelming and cheap-looking, like a toy, while others love its appearance in person and its clean, appealing design as a smartwatch alternative. The stock leather strap is described as decent but basic and potentially short for larger wrists, with one owner advising a third-party replacement for durability. One owner of a different variant noted the date font is too small to be useful.

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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