Side by side

Serica Ref. 8315 Travel ChronometervsFormex Essence ThirtyNine

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
Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390
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.

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is praised for its impressive build quality and value, featuring a patented case suspension system for comfort and protection. It houses a COSC-certified Sellita SW200-1 movement with a 38-hour power reserve and a tool-free strap quick-release system. A minor inconvenience noted is the specific closing order of the clasp. On balance, reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value at its price point.

From video reviewers

The case suspension system enhances comfort and the COSC-certified movement is a strong feature. The bracelet exhibits noticeable rattle. Reviewers disagreed on the ideal case size, with some preferring the 39mm and others the 41mm.

At a glance

10 of 29 specs differ
Diameter
Ref. 8315 Travel Chronometer39mm
Essence ThirtyNine39mm
Power Reserve
Ref. 8315 Travel Chronometer42h
Essence ThirtyNine41h
Water Resistance
Ref. 8315 Travel Chronometer200m
Essence ThirtyNine100m
MSRP
Ref. 8315 Travel Chronometer$2,479
Essence ThirtyNine$2,390

Full specifications

Case

4 specs
Category
GMT
Dress
Thickness
12.3mm
10mm
Lug-to-Lug
46.5mm
45mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
GMT - Enamel Black
Space Ghost

Movement

3 specs
Caliber
SOPROD C125 COSC
Sellita SW200-1
Power Reserve
42h
41h
Complications
GMT, COSC
None

Pricing

1 specs
MSRP
$2,479
$2,390
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