Side by side

Serica Ref. 8315 Travel ChronometervsGrand Seiko SLGA015

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
SLGA015
Grand SeikoSLGA015
MSRP $12,600

At a glance

13 of 29 specs differ
Diameter
Ref. 8315 Travel Chronometer39mm
SLGA01543.8mm
Power Reserve
Ref. 8315 Travel Chronometer42h
SLGA015120h
Water Resistance
Ref. 8315 Travel Chronometer200m
SLGA015200m
MSRP
Ref. 8315 Travel Chronometer$2,479
SLGA015$12,600

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
39mm
43.8mm
Thickness
12.3mm
13.8mm
Lug-to-Lug
46.5mm
51.5mm
Lug Width
20mm
23mm
Material
Stainless Steel
Titanium

Crystal & Dial

2 specs
Dial Color
GMT - Enamel Black
Black
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
SOPROD C125 COSC
9RA5
Type
Automatic
Spring Drive
Power Reserve
42h
120h
Complications
GMT, COSC
None

Pricing

1 specs
MSRP
$2,479
$12,600

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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.

Grand Seiko SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

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