Side by side
Serica Ref. 8315 Travel ChronometervsOak & Oscar The Humboldt GMT Titanium
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Ref. 8315 Travel Chronometer39mm
The Humboldt GMT Titanium39.5mm
Power Reserve
Ref. 8315 Travel Chronometer42h
The Humboldt GMT Titanium56 hoursh
Water Resistance
Ref. 8315 Travel Chronometer200m
The Humboldt GMT Titanium200m
MSRP
Ref. 8315 Travel Chronometer$2,479
The Humboldt GMT Titanium$2,950
Full specifications
Case
5 specsDiameter
39mm
39.5mm
Thickness
12.3mm
12.5mm
Lug-to-Lug
46.5mm
46.8mm
Material
Stainless Steel
Grade 5 Titanium
Caseback
Solid
Solid screw-down
Crystal & Dial
3 specsCrystal Shape
Flat
Double-domed
AR Coating
Yes
Underside
Dial Color
GMT - Enamel Black
Green
Movement
4 specsCaliber
SOPROD C125 COSC
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
56 hoursh
Complications
GMT, COSC
None
Pricing
1 specsMSRP
$2,479
$2,950
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