Side by side

Swatch Sistem SeavsUndone Aero Commando

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

Add a watch
Sistem Sea
SwatchSistem Sea
MSRP $170
See the full Sistem Sea
Aero Commando
UndoneAero Commando
MSRP $365
See the full Aero Commando
Buy from Swatch ↗
Buy used on eBay ↗
Buy from Undone ↗
Buy used on eBay ↗

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

At a glance

14 of 29 specs differ
Diameter
Sistem Sea42mm
Aero Commando40mm
Power Reserve
Sistem Sea—
Aero Commando—
Water Resistance
Sistem Sea30m
Aero Commando100m
MSRP
Sistem Sea$170
Aero Commando$365

Full specifications

Case

8 specs
Category
Mechanical
—
Diameter
42mm
40mm
Thickness
13.9mm
0mm
Lug-to-Lug
50.6mm
0mm
Lug Width
—
0mm
Material
Polymer
Stainless Steel
Finish
Polymer
—
Water Resistance
30m
100m

Crystal & Dial

1 specs
Dial Color
Blue
—

Movement

4 specs
Caliber
—
Seiko NH35
Power Reserve
0h
—
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$170
$365
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.

Ibarra RZA2301SS
Ibarra
Reina

RZA2301SS

40mm·Automatic·100m WR
$207MSRP
—Used
BOLDR Supply Co. Merlion 50th Anniversary
BOLDR Supply Co.micro

Merlion 50th Anniversary

Ref. merlion-50th
40mm·Automatic·200m WR
$449MSRP
—Used
Ibarra PLA2201SS
Ibarra
Plaza

PLA2201SS

40mm·Automatic·100m WR
$207MSRP
—Used
BOLDR Supply Co. Defender Elewana
BOLDR Supply Co.micro

Defender Elewana

2 variantsSeries
40mm·Automatic·200m WR
$439MSRP
—Used
Orient Bambino Version 2 Arabic Index
Orient

Bambino Version 2 Arabic Index

5 variantsRef. ra-ac0035e30b
40.5mm·Automatic
$295MSRP
—Used
Filippo Loreti Watches Aquadiver
Filippo Loreti Watchesmicro

Aquadiver

7 variantsSeries
40mm·Automatic·200m WR
$410MSRP
—Used
MMI Watches Turret 300M V2- SILVER O Model: TRD-03
MMI Watchesmicro

Turret 300M V2- SILVER O Model: TRD-03

40mm·Automatic·300m WR
$425MSRP
—Used
MMI Watches Turret 300M - Model: TR4-OR (PITCH BLACK) (NO DATE) (OLD RADIUM)
MMI Watchesmicro

Turret 300M - Model: TR4-OR (PITCH BLACK) (NO DATE) (OLD RADIUM)

40mm·Automatic·300m WR
$425MSRP
—Used
All alternatives to the Sistem Sea →All alternatives to the Aero Commando →
Explore the full catalog
DiscussionNot started
Adjacent matchups

People also compared

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

Colomer & Sons Roma TempusvsUndone Aero CommandoStewart Dawson 911vsUndone Aero CommandoFerro & Company AGL 2 AUTOMATIC BLACK /vsUndone Aero CommandoTSAO Baltimore Founders Edition CreamvsUndone Aero CommandoShiro Kara Vintage Diver: Grey SkyvsSwatch Sistem SeaMMI Watches Turret 300M V2- SAND BLACK Model: TRD-04vsSwatch Sistem Sea
Edit this comparisonAdd another watchExplore more 39–43mm watches