Side by side

Sternglas Naos XSvsSeiko Prospex Rotocall

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

Naos XS
SternglasNaos XS
MSRP $247
Prospex Rotocall
SeikoProspex Rotocall
MSRP $550

At a glance

12 of 29 specs differ
Diameter
Naos XS33mm
Prospex Rotocall37mm
Power Reserve
Naos XS
Prospex Rotocall40h
Water Resistance
Naos XS50m
Prospex Rotocall100m
MSRP
Naos XS$247
Prospex Rotocall$550

Full specifications

Case

6 specs
Category
Dress
Sport
Diameter
33mm
37mm
Thickness
6mm
10.6mm
Lug-to-Lug
36mm
43.5mm
Lug Width
16mm
20mm
Water Resistance
50m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Hardlex
Dial Color
Black

Movement

3 specs
Caliber
Ronda 784
A824
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$247
$550

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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 XS

Owners widely praise the Sternglas Naos XS for its simple, awesome design, domed sapphire crystal, and clean hands, with one owner highlighting the beautiful blue mother-of-pearl dial and top-notch build quality on a special edition. It is recommended as a durable, refined daily wear watch for around $270, suitable for casual and formal occasions. However, one owner found the Sternglas Naos XS to have a cheap feel and a face resembling a toy, noting it wears smaller than expected, while another described the automatic movement as a bit noisy. On balance, owners rate the Sternglas Naos XS highly for its refined design and value, with specific praise for the mother-of-pearl dial on special editions.

Seiko Prospex Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

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