Which is cheaper, the Sternglas Naos Mondphase or the Timefactors PRS-40?

At MSRP the Timefactors PRS-40 is the cheaper of the two at $315, against $323 for the Sternglas Naos Mondphase — a $8 gap before any retailer discounting.

Which is bigger, the Sternglas Naos Mondphase or the Timefactors PRS-40?

The Timefactors PRS-40 wears larger at 40.2mm versus 38mm for the Sternglas Naos Mondphase — a 2.2mm difference across the dial.

Which has better water resistance, the Sternglas Naos Mondphase or the Timefactors PRS-40?

The Timefactors PRS-40 is rated to 100m versus 50m for the Sternglas Naos Mondphase.

What movement does the Sternglas Naos Mondphase run compared to the Timefactors PRS-40?

The Sternglas Naos Mondphase runs a quartz caliber (Seiko VJ76), while the Timefactors PRS-40 runs a mecaquartz (Seiko VK61).

Side by side

Sternglas Naos MondphasevsTimefactors PRS-40

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

Add a watch

Sternglas Naos Mondphase

naos-mondphase-mitternachtsblau

MSRP $323

Timefactors PRS-40

smiths-prs-40-chronograph

MSRP $315

Buy from Sternglas ↗

Buy used on eBay ↗

Buy from Timefactors ↗

Buy used on eBay ↗

At a glance

13 of 29 specs differ

Diameter

Naos Mondphase38mm

PRS-4040.2mm

Power Reserve

Naos Mondphase—

PRS-4040h

Water Resistance

Naos Mondphase50m

PRS-40100m

MSRP

Naos Mondphase$323

PRS-40$315

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

—

Black

Lume

Luminova Punkten

SuperLuminova C3

Movement

4 specs

Caliber

Seiko VJ76

Seiko VK61

Type

Quartz

Mecaquartz

Power Reserve

—

40h

Jewels

—

Pricing

1 specs

MSRP

$323

$315

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Pagani Designhomage

Quartz

Follow this matchup

Get a note when Sternglas Naos Mondphase vs Timefactors PRS-40 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Sternglas Naos GroßdatumvsTimefactors PRS-40 Sternglas Naos SolarvsTimefactors PRS-40 Pagani Design PD-1761vsTimefactors PRS-40 Pagani Design PD-1766vsTimefactors PRS-40 Sternglas Naos MondphasevsStraton Speciale Automatic or Quartz watch Depancel NaissancevsSternglas Naos Mondphase

Edit this comparison Add another watch Explore more 37–42mm watches

Sternglas Naos MondphasevsTimefactors PRS-40

At a glance

Full specifications

More watches worth a look

PD-1761

Straton Speciale Automatic or Quartz watch

PD-1766

Naissance

Rallygraf Meca-Quartz II

Howard Hughes Chronograph - HH01

Yachtingraf Croisière Meca-Quartz

Howard Hughes Scarface Chronograph - HH01 SF

Follow this matchup

People also compared