Side by side

Slow Watches Slow Round-SvsVaer D4 Outerknown Solar Diver

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

Add a watch
Slow Round-S
Slow WatchesSlow Round-S
MSRP $280
D4 Outerknown Solar Diver
VaerD4 Outerknown Solar Diver
MSRP $549
Buy from Slow Watches ↗
Buy used on eBay ↗
Buy from Vaer ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
Slow Round-S34mm
D4 Outerknown Solar Diver39mm
Power Reserve
Slow Round-S—
D4 Outerknown Solar Diver40h
Water Resistance
Slow Round-S100m
D4 Outerknown Solar Diver200m
MSRP
Slow Round-S$280
D4 Outerknown Solar Diver$549

Full specifications

Case

6 specs
Category
—
Diver
Diameter
34mm
39mm
Thickness
8.25mm
13.18mm
Lug Width
—
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Blue

Movement

2 specs
Caliber
Ronda 515.24
—
Power Reserve
—
40h

Pricing

1 specs
MSRP
$280
$549
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.

Smiths SPEEDBIRD GMT PRS-22GMTQ
Smithsmicro

SPEEDBIRD GMT PRS-22GMTQ

Ref. speedbird-gmt
36mm·Quartz·100m WR
—MSRP
—Used
Yema Navygraf Marine Nationale Quartz
Yemamicro

Navygraf Marine Nationale Quartz

9 watches · 12 variantsNavygraf
39mm·Quartz·100m WR
$499MSRP
—Used
Slow Watches Slow Mo
Slow Watchesmicro
Mo

Slow Mo

34/40mm
7 variantsRef. slow-mo-16
34/40mm·Quartz·100m WR
—MSRP
—Used
Islander Islander Saltaire 38mm Solar Dive Watch with Ink Black Dial #ISL-278
Islandermicro
Under $50

Islander Saltaire 38mm Solar Dive Watch with Ink Black Dial #ISL-278

9 watches · 9 variantsUnder $50
38mm·Quartz·200m WR
$395MSRP
—Used
GhostTown Old West
GhostTownmicro

Old West

Ref. old-west
37mm·Quartz
$250MSRP
—Used
CWC RANCD Quartz Divers Watch with Personalised Case Back
CWCmicro
RN Divers

RANCD Quartz Divers Watch with Personalised Case Back

Ref. ran-clearance-diver-rn-quartz-divers-watch-special-dial-personalised-case-back
40mm·Quartz·100m WR
$566MSRP
—Used
Asterisk Watches Artistic Dial Watch
Asterisk Watches

Artistic Dial Watch

4 variantsRef. charley-harper-the-last-aphid-ala-1108-03l
38mm·Quartz
—MSRP
—Used
Sheffield Diver 1
Sheffieldmicro
1

Diver 1

3 variantsRef. diver-1-white
40mm·Quartz·200m WR
—MSRP
—Used
All alternatives to the Slow Round-S →All alternatives to the D4 Outerknown Solar Diver →
Explore the full catalog

Follow this matchup

Get a note when Slow Watches Slow Round-S vs Vaer D4 Outerknown Solar Diver 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.

Slow Watches Slow Mo 34mm GMT Mo — cushion/squared case, single-hand 24h, printed 24h numeralsvsVaer D4 Outerknown Solar DiverSlow Watches Slow Round 40mmvsVaer D4 Outerknown Solar DiverSmiths SPEEDBIRD GMT PRS-22GMTQvsVaer D4 Outerknown Solar DiverSlow Watches Slow MovsVaer D4 Outerknown Solar DiverSlow Watches Slow Round-SvsYema Navygraf Marine Nationale QuartzIslander Saltaire 38mm Solar Dive Watch with Ink Black Dial #ISL-278vsSlow Watches Slow Round-S
Edit this comparisonAdd another watchExplore more 33–40mm watches