Side by side

Sternglas Naos SolarvsRZE Fortitude GMT

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

Naos Solar
SternglasNaos Solar
MSRP $323
Fortitude GMT
RZEFortitude GMT
MSRP $719

At a glance

15 of 29 specs differ
Diameter
Naos Solar38mm
Fortitude GMT41mm
Power Reserve
Naos Solar
Fortitude GMT40h
Water Resistance
Naos Solar50m
Fortitude GMT200m
MSRP
Naos Solar$323
Fortitude GMT$719

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
38mm
41mm
Thickness
10mm
12mm
Lug-to-Lug
42mm
47mm
Material
Stainless Steel
Grade 5 Titanium
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Red
Lume
Luminova Punkten
Super-LumiNova BGW9

Movement

5 specs
Caliber
Seiko VJ76
Miyota 9075
Type
Solar
Automatic
Power Reserve
40h
Jewels
25
Complications
None
GMT

Pricing

1 specs
MSRP
$323
$719

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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.

RZE Fortitude GMT

The RZE Fortitude GMT is widely praised for its lightweight titanium construction and durable UltraHex coating, offering exceptional value under $700. Owners and reviewers highlight its comfortable wearability, with a bracelet featuring a quick-adjust clasp and multiple micro-adjustment positions. The Miyota 9075 flyer GMT movement is noted for its accuracy, with one owner reporting -1 to +1 seconds per day, though another source states a range of -10/+30 seconds per day. The watch's design is appreciated for its soul and attention to detail, including a subtle red crown tube indicator and faceted lugs, and its Nimbus Grey dial features a coarse, sandpaper-like texture and fumé effect. A reviewer points out the rotor can be loud and a smaller screwdriver is needed for sizing, while an owner found the GMT hand lume confusing. Overall, owners and reviewers rate the RZE Fortitude GMT highly for its comfortable titanium build, durable coating, and excellent value.

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