Side by side

Serica Ref. 5303 Diving ChronometervsGrand Seiko SBGP007

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
SBGP007
Grand SeikoSBGP007
MSRP $3,900

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
SBGP00740mm
Power Reserve
Ref. 5303 Diving Chronometer42h
SBGP00740h
Water Resistance
Ref. 5303 Diving Chronometer300m
SBGP007100m
MSRP
Ref. 5303 Diving Chronometer$1,768
SBGP007$3,900

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39mm
40mm
Thickness
12.2mm
10.8mm
Lug-to-Lug
46.5mm
47mm
Material
Stainless Steel
Gold
Water Resistance
300m
100m

Crystal & Dial

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

Movement

4 specs
Caliber
M100 COSC
9F85
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$3,900

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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. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

Grand Seiko SBGP007

Grand Seiko SBGP007 owners widely praise its finishing and the quality of its stainless steel case and bracelet with solid end links. The watch features a 40mm case, a smooth bezel, a deep blue textured dial, and Grand Seiko alpha hands. It is powered by the Seiko calibre 9F85 quartz movement. Owners are split on the red seconds hand and gold star emblem, with some finding them too bright or childish, while others defend the star as a mark of accuracy. The $3900 MSRP is debated, with some considering it high for a quartz watch. Overall, owners rate the Grand Seiko SBGP007 highly for its exceptional finishing at the price point, despite some debate over aesthetic details.

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