Side by side
Serica Ref. 8315 Travel ChronometervsNaga Watches Opera
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Ref. 8315 Travel Chronometer39mm
Opera39mm
Power Reserve
Ref. 8315 Travel Chronometer42h
Opera—
Water Resistance
Ref. 8315 Travel Chronometer200m
Opera100m
MSRP
Ref. 8315 Travel Chronometer$2,479
Opera$917
Full specifications
Case
5 specsCategory
GMT
—
Thickness
12.3mm
10mm
Lug-to-Lug
46.5mm
—
Lug Width
20mm
—
Water Resistance
200m
100m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
GMT - Enamel Black
Lapislazuli
Lume
Super-LumiNova
None
Movement
3 specsCaliber
SOPROD C125 COSC
Miyota 9039
Power Reserve
42h
—
Complications
GMT, COSC
None
Pricing
1 specsMSRP
$2,479
—
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