Side by side

Serica Ref. 8315 Travel ChronometervsBoldr Expedition II

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
Expedition II
BoldrExpedition II
MSRP $699

At a glance

9 of 29 specs differ
Diameter
Ref. 8315 Travel Chronometer39mm
Expedition II41mm
Power Reserve
Ref. 8315 Travel Chronometer42h
Expedition II38h
Water Resistance
Ref. 8315 Travel Chronometer200m
Expedition II200m
MSRP
Ref. 8315 Travel Chronometer$2,479
Expedition II$699

Full specifications

Case

4 specs
Category
GMT
Tool
Diameter
39mm
41mm
Thickness
12.3mm
14mm
Lug-to-Lug
46.5mm
48mm

Crystal & Dial

1 specs
Dial Color
GMT - Enamel Black
I Eiger

Movement

3 specs
Caliber
SOPROD C125 COSC
Sellita SW200-1
Power Reserve
42h
38h
Complications
GMT, COSC
None

Pricing

1 specs
MSRP
$2,479
$699

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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.

Boldr Expedition II

Owners widely praise the Boldr Expedition II for its tool watch utility, legible dials, and bead-blasted finish, with many finding its 41mm size ideal for daily wear and comfortable on various wrists. Reviewers and owners alike highlight its excellent value, well-executed details, and the functional design of its knurled crown. Some owners note the dial color can appear creamier than expected online, and one reviewer found the stock rubber strap to be a minor criticism. The Sellita SW200 movement and domed sapphire crystal are also noted as positive features. On balance, owners and reviewers rate the Boldr Expedition II highly for its functional field watch design and excellent value.

From video reviewers

The Boldr Expedition II's solid construction and reliability are notable strengths. A weakness is the potential for dim lume brightness, as the entire dial is fully covered in lume but the reviewer's assessment implies it might be inadequate.

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