Side by side

Serica Ref. 8315 Travel ChronometervsRZE Fortitude GMT

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
Fortitude GMT
RZEFortitude GMT
MSRP $719

At a glance

11 of 29 specs differ
Diameter
Ref. 8315 Travel Chronometer39mm
Fortitude GMT41mm
Power Reserve
Ref. 8315 Travel Chronometer42h
Fortitude GMT40h
Water Resistance
Ref. 8315 Travel Chronometer200m
Fortitude GMT200m
MSRP
Ref. 8315 Travel Chronometer$2,479
Fortitude GMT$719

Full specifications

Case

4 specs
Diameter
39mm
41mm
Thickness
12.3mm
12mm
Lug-to-Lug
46.5mm
47mm
Material
Stainless Steel
Grade 5 Titanium

Crystal & Dial

3 specs
AR Coating
Yes
Underside
Dial Color
GMT - Enamel Black
Red
Lume
Super-LumiNova
Super-LumiNova BGW9

Movement

3 specs
Caliber
SOPROD C125 COSC
Miyota 9075
Power Reserve
42h
40h
Complications
GMT, COSC
GMT

Pricing

1 specs
MSRP
$2,479
$719

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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.

RZE Fortitude GMT

The RZE Fortitude GMT is widely praised for its lightweight titanium construction and durable UltraHex coating, offering exceptional value under $700. Owners and reviewers highlight its comfortable wearability, with a bracelet featuring a quick-adjust clasp and multiple micro-adjustment positions. The Miyota 9075 flyer GMT movement is noted for its accuracy, with one owner reporting -1 to +1 seconds per day, though another source states a range of -10/+30 seconds per day. The watch's design is appreciated for its soul and attention to detail, including a subtle red crown tube indicator and faceted lugs, and its Nimbus Grey dial features a coarse, sandpaper-like texture and fumé effect. A reviewer points out the rotor can be loud and a smaller screwdriver is needed for sizing, while an owner found the GMT hand lume confusing. Overall, owners and reviewers rate the RZE Fortitude GMT highly for its comfortable titanium build, durable coating, and excellent value.

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