Side by side

Sternglas Naos SolarvsRZE Aspirare

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

Naos Solar
SternglasNaos Solar
MSRP $323
Aspirare
RZEAspirare
MSRP $699

At a glance

16 of 29 specs differ
Diameter
Naos Solar38mm
Aspirare44mm
Power Reserve
Naos Solar
Aspirare40h
Water Resistance
Naos Solar50m
Aspirare200m
MSRP
Naos Solar$323
Aspirare$699

Full specifications

Case

8 specs
Category
Dress
Diver
Diameter
38mm
44mm
Thickness
10mm
13mm
Lug-to-Lug
42mm
53mm
Lug Width
20mm
22mm
Material
Stainless Steel
Grade 5 Titanium
Water Resistance
50m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
White
Lume
Luminova Punkten
None

Movement

4 specs
Caliber
Seiko VJ76
Miyota 9039
Type
Solar
Automatic
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$323
$699

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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 Aspirare

The RZE Aspirare is widely praised for its exceptional value and build quality at $599, featuring a 44mm titanium case with UltraHex coating and a Miyota 9015 movement. Owners find the watch surprisingly comfortable, even on smaller wrists, and appreciate its modern, futuristic design and interchangeable bezel system. Some reviewers note the minute hand appears slightly short relative to the chapter ring, and the 53mm lug-to-lug may be challenging for smaller wrists. On balance, owners and reviewers rate the RZE Aspirare highly for its robust titanium construction and strong value proposition.

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