Side by side

Oblvlo JM RotorvsSerket Watch Co Reef Mariana

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

Add a watch
JM Rotor
OblvloJM Rotor
MSRP $299
Reef Mariana
Serket Watch CoReef Mariana
MSRP $449
Buy from Oblvlo ↗
Buy used on eBay ↗
Buy from Serket Watch Co ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
JM Rotor42mm
Reef Mariana40mm
Power Reserve
JM Rotor42h
Reef Mariana—
Water Resistance
JM Rotor50m
Reef Mariana200m
MSRP
JM Rotor$299
Reef Mariana$449

Full specifications

Case

5 specs
Category
Sport
—
Diameter
42mm
40mm
Thickness
13mm
13.2mm
Lug-to-Lug
46mm
47.5mm
Water Resistance
50m
200m

Crystal & Dial

2 specs
Dial Color
Black
Orange
Lume
None
BGW9

Movement

3 specs
Caliber
Miyota 8215
Seiko NH35
Power Reserve
42h
—
Jewels
21
25

Pricing

1 specs
MSRP
$299
$449
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.

Oblvlo DM Skeleton Dive
Oblvlomicro
DM Series

DM Skeleton Dive

Ref. DM-SIM
40mm·Automatic·200m WR
$194MSRP
—Used
DIFICIANO Marlin
DIFICIANOmicro

Marlin

4 variantsRef.
40mm·Automatic·300m WR
$399MSRP
—Used
Spinnaker Croft 42 Skeleton
Spinnakermicro

Croft 42 Skeleton

5 watches · 28 variantsCroft
42mm·Automatic·100m WR
$435MSRP
—Used
DIFICIANO Narwhal
DIFICIANOmicro

Narwhal

38mm·Automatic·300m WR
$419MSRP
—Used
Oblvlo BLM Trisome
Oblvlomicro
BLM Series

BLM Trisome

4 watches · 4 variantsBLM Series
41mm·Automatic
$294MSRP
—Used
Ventus Watches Northstar
Ventus Watchesmicro

Northstar

8 variantsRef. northstar-n-08
40mm·Automatic·300m WR
—MSRP
—Used
Boldr The T Rex By Boldr X Nitecore
Boldrmicro

The T Rex By Boldr X Nitecore

Ref. the-t-rex-by-boldr-x-nitecore
40mm·Automatic·200m WR
$499MSRP
—Used
Sternglas Hamburg Pro Automatik
Sternglasmicro

Hamburg Pro Automatik

2 variantsHamburg Pro Automatik
42mm·Automatic
$755MSRP
—Used
All alternatives to the JM Rotor →All alternatives to the Reef Mariana →
Explore the full catalog

Follow this matchup

Get a note when Oblvlo JM Rotor vs Serket Watch Co Reef Mariana 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.

Oblvlo DM Skeleton DivevsSerket Watch Co Reef MarianaSerket Watch Co Reef MarianavsSpinnaker Croft 42 SkeletonOblvlo BLM TrisomevsSerket Watch Co Reef MarianaOblvlo BLM IIvsSerket Watch Co Reef MarianaDIFICIANO MarlinvsOblvlo JM RotorOblvlo JM RotorvsSerket Watch Co Reef X Diver Black DLC
Edit this comparisonAdd another watchExplore more 39–43mm watches