Side by side

Serica Ref. 8315 Travel ChronometervsBaltic Hermétique Summer

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
Hermétique Summer
BalticHermétique Summer
MSRP $594

At a glance

10 of 29 specs differ
Diameter
Ref. 8315 Travel Chronometer39mm
Hermétique Summer37mm
Power Reserve
Ref. 8315 Travel Chronometer42h
Hermétique Summer42h
Water Resistance
Ref. 8315 Travel Chronometer200m
Hermétique Summer150m
MSRP
Ref. 8315 Travel Chronometer$2,479
Hermétique Summer$594

Full specifications

Case

5 specs
Category
GMT
Dress
Diameter
39mm
37mm
Thickness
12.3mm
10.8mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
200m
150m

Crystal & Dial

2 specs
Dial Color
GMT - Enamel Black
Orange
Lume
Super-LumiNova
BGW9

Movement

2 specs
Caliber
SOPROD C125 COSC
Miyota 9039
Complications
GMT, COSC
None

Pricing

1 specs
MSRP
$2,479
$594

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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.

Baltic Hermétique Summer

Reviewers highlight the Baltic Hermétique Summer's compact 37mm brushed case with a polished bezel and 150 meters of water resistance. The watch features glossy dials in bright colors with raised BGW9 Super-LumiNova indices that emit a strong blue glow, and it comes with color-matched FKM rubber straps or Baltic bracelets. The Miyota 9039 movement supports hacking and hand-winding. However, the recessed crown can be difficult to manipulate if fingernails are not long enough, and the movement has a stated accuracy of -10/+30 seconds per day. Overall, reviewers praise the Baltic Hermétique Summer for its well-balanced, colorful dials and strong lume at an affordable price point.

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