Side by side
Boldr PolarisvsSpinnaker Challenger Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures
At a glance
11 of 29 specs differDiameter
Polaris38mm
Challenger Automatic42mm
Power Reserve
Polaris—
Challenger Automatic—
Water Resistance
Polaris200m
Challenger Automatic200m
MSRP
Polaris$399
Challenger Automatic$289
Full specifications
Case
6 specsCategory
Tool
Diver
Diameter
38mm
42mm
Thickness
12mm
19mm
Lug-to-Lug
44mm
49.5mm
Lug Width
20mm
22mm
Material
Titanium
316L Stainless Steel
Crystal & Dial
3 specsAR Coating
Yes
—
Dial Color
Blackout
Blue
Lume
Super-LumiNova
None
Movement
1 specsCaliber
Seiko NH38
Seiko NH35
Pricing
1 specsMSRP
$399
$289
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
DiscussionNot started
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Spinnaker Challenger AutomaticvsBoldr VentureBOLDR Supply Co. Venture Carbon BlackvsSpinnaker Challenger AutomaticBOLDR Supply Co. Venture SingularityvsSpinnaker Challenger AutomaticBOLDR Supply Co. Venture EarthvsSpinnaker Challenger AutomaticAudaz ADZ-2070vsBoldr PolarisDuxot Henri Diver AutomaticvsBoldr Polaris












