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Sternglas MarusvsTimefactors SMITHS NATO PRS-40 AUTOMATIC

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

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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 Marus

The Sternglas Marus is widely praised for its well-built, heavy feel and excellent bezel action, considered the best in its price range. Despite its 42mm diameter and 52mm lug-to-lug, owners report it fits surprisingly well on slim wrists. A reviewer notes the short seconds hand as a drawback, but highlights the watch as a fun, affordable starting point for a collection, featuring a vibrant Pepsi bezel and an anthracite dial that shifts in appearance, powered by a Miyota 8215 movement for €399. Overall, owners and reviewers rate the Sternglas Marus highly for its robust build and superior bezel at its price point.

Timefactors SMITHS NATO PRS-40 AUTOMATIC

Owners widely praise the Timefactors SMITHS NATO PRS-40 AUTOMATIC for its unique, "badass," rugged, and futuristic design, with some finding its "ugly" aesthetic appealing for its bombproof nature. The Seiko 6R15 movement winds smoothly and operates quietly, and the watch features 100m water resistance and a flat sapphire crystal. The 12 o'clock crown is noted as easy to use by rolling, and the fixed lugs necessitate NATO straps. Some owners report issues with Timefactors' ordering system and customer service, and one found a speck of dust under the crystal, though another noted no imperfections. Overall, owners rate the Timefactors SMITHS NATO PRS-40 AUTOMATIC highly for its distinctive "beater" watch build and unique aesthetic at the price.

At a glance

12 of 29 specs differ
Diameter
Marus42mm
SMITHS NATO PRS-40 AUTOMATIC40.2mm
Power Reserve
Marus42h
SMITHS NATO PRS-40 AUTOMATIC50h
Water Resistance
Marus200m
SMITHS NATO PRS-40 AUTOMATIC100m
MSRP
Marus$485
SMITHS NATO PRS-40 AUTOMATIC$315

Full specifications

Case

6 specs
Category
Diver
Diameter
42mm
40.2mm
Thickness
14mm
12.25mm
Lug-to-Lug
53.8mm
54.7mm
Lug Width
20mm
22mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Yes
Lume
Luminova grün
None

Movement

3 specs
Caliber
Miyota 8215
Seiko 6R15
Power Reserve
42h
50h
Jewels
0

Pricing

1 specs
MSRP
$485
$315
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