Side by side

Serica Ref. 8315 Travel ChronometervsOrient Helios

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

Ref. 8315 Travel Chronometer
SericaRef. 8315 Travel Chronometer
MSRP $2,479
Helios
OrientHelios
MSRP $335

At a glance

19 of 29 specs differ
Diameter
Ref. 8315 Travel Chronometer39mm
Helios40.5mm
Power Reserve
Ref. 8315 Travel Chronometer42h
Helios40h
Water Resistance
Ref. 8315 Travel Chronometer200m
Helios30m
MSRP
Ref. 8315 Travel Chronometer$2,479
Helios$335

Full specifications

Case

7 specs
Category
GMT
Diameter
39mm
40.5mm
Thickness
12.3mm
12mm
Lug-to-Lug
46.5mm
47mm
Lug Width
20mm
21mm
Water Resistance
200m
30m
Caseback
Solid
Display

Crystal & Dial

6 specs
Crystal
Sapphire
Mineral
Crystal Shape
Flat
AR Coating
Yes
Dial Color
GMT - Enamel Black
Green
Indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
SOPROD C125 COSC
FT622
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
40h
Jewels
25
22
Complications
GMT, COSC
None

Pricing

1 specs
MSRP
$2,479
$335

Follow this matchup

Get a note when Serica Ref. 8315 Travel Chronometer vs Orient Helios gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Serica Ref. 8315 Travel Chronometer

Serica Ref. 8315 Travel Chronometer owners and reviewers praise its neo-vintage aesthetic, comfortable 39mm size, and unique day/night bezel design. Some find the lack of a date function a drawback, and the mirrored 12-hour bezel with AM/PM text is considered less practical than a traditional 24-hour bezel for time zone reading, with the lollipop-style 24-hour hand and asymmetrical bezel design also noted as potentially confusing. The watch is powered by a COSC-certified Soprod C125 movement with a 40-hour power reserve. One owner noted import duties and that the strap's aggressive taper required using the last hole for a proper fit. On balance, Serica Ref. 8315 Travel Chronometer is appreciated for its distinctive design and wearability, though its GMT functionality and bezel design are points of contention for some.

Orient Helios

The Orient Helios is widely praised for its vibrant dial, open-heart design, and excellent value for money, with owners noting its great finish and quality that exceeds its price point. The watch is described as attractive and stylish, with a thin profile that wears comfortably, though some owners wish it were smaller. Accuracy figures vary, with one owner reporting it consistently runs 5-6 seconds fast per day, while another sees it at 1-2 seconds fast. Opinions are split on the inclusion of a date window, with some finding it desirable for practicality and aesthetic balance, while others prefer its absence. The stock bracelet receives mixed reviews, with one owner finding it awkward and upgrading to a strap, while another considers it nice with a smooth finish and solid links. Overall, owners rate the Orient Helios highly for its mesmerizing open-heart dial and impressive quality at an attainable price.

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.

Adjacent matchups

People also compared

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