Side by side
Spinnaker Challenger AutomaticvsBoldr The T Rex By Boldr X Nitecore
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Challenger Automatic42mm
The T Rex By Boldr X Nitecore40mm
Power Reserve
Challenger Automatic40h
The T Rex By Boldr X Nitecore40h
Water Resistance
Challenger Automatic200m
The T Rex By Boldr X Nitecore200m
MSRP
Challenger Automatic$289
The T Rex By Boldr X Nitecore$499
Full specifications
Case
5 specsDiameter
42mm
40mm
Thickness
19mm
12.3mm
Lug-to-Lug
49.5mm
46mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
Blue
T-Rex by BOLDR x Nitecore
Lume
None
Super-LumiNova
Movement
1 specsCaliber
SII NH35A
Seiko NH35A
Pricing
1 specsMSRP
$289
$499
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