Which is cheaper, the Straton Syncro MKII Mechanical Chrono or the Zelos Helica?

At MSRP the Zelos Helica is the cheaper of the two at $499, against $599 for the Straton Syncro MKII Mechanical Chrono — a $100 gap before any retailer discounting.

Which is bigger, the Straton Syncro MKII Mechanical Chrono or the Zelos Helica?

The Straton Syncro MKII Mechanical Chrono wears larger at 40mm versus 39mm for the Zelos Helica — a 1mm difference across the dial.

What movement does the Straton Syncro MKII Mechanical Chrono run compared to the Zelos Helica?

The Straton Syncro MKII Mechanical Chrono runs a manual caliber (Seagull ST19), while the Zelos Helica runs a automatic (Miyota 9015).

Side by side

Straton Straton Syncro MKII Mechanical ChronovsZelos Helica

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

Straton Straton Syncro MKII Mechanical Chrono

straton-syncro-mkii-mechanical-chrono

MSRP $599

Zelos Helica

helica-wave-mop

MSRP $499

At a glance

16 of 29 specs differ

Diameter

Straton Syncro MKII Mechanical Chrono40mm

Helica39mm

Power Reserve

Straton Syncro MKII Mechanical Chrono—

Helica40h

Water Resistance

Straton Syncro MKII Mechanical Chrono100m

Helica100m

MSRP

Straton Syncro MKII Mechanical Chrono$599

Helica$499

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

Domed

Flat

AR Coating

Underside

Inner

Dial Color

—

39 - Wave MOP

Indices

—

Applied

Movement

5 specs

Caliber

Seagull ST19

Miyota 9015

Type

Manual

Automatic

Beat Rate

0 vph

28,800 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$599

$499

Follow this matchup

Get a note when Straton Syncro MKII Mechanical Chrono vs Zelos Helica gets more votes, a community discussion, or a price drop. No account needed.

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.

Hemelmicro

Air Support

Adjacent matchups

People also compared

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

Hemel HFC Mechanical ChronographvsZelos Helica Farer CHRONO-SPORTvsZelos Helica Hemel Sky Racer MechanicalvsZelos Helica Furlan Marri FlybackvsZelos Helica Henry Archer TidevandvsStraton Syncro MKII Mechanical Chrono Henry Archer VesterhavvsStraton Syncro MKII Mechanical Chrono

Edit this comparison Add another watch Explore more 38–41mm watches

Straton Straton Syncro MKII Mechanical ChronovsZelos Helica

At a glance

Full specifications

Follow this matchup

More watches worth a look

HFC Mechanical Chronograph

Tidevand

CHRONO-SPORT

Vesterhav

Sky Racer Mechanical

Flyback

Apollo

Islander Bridgehampton Racing Chronograph with Asphalt Black Dial #ISL-234

People also compared