Side by side

Serica Ref. 5303 Diving ChronometervsTissot Seastar 1000

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
Seastar 1000
TissotSeastar 1000
MSRP $875

At a glance

10 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Seastar 100040mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Seastar 100080h
Water Resistance
Ref. 5303 Diving Chronometer300m
Seastar 1000300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Seastar 1000$875

Full specifications

Case

3 specs
Diameter
39mm
40mm
Thickness
12.2mm
12.48mm
Lug-to-Lug
46.5mm
40mm

Crystal & Dial

3 specs
Dial Color
Enamel Black
Graded grey-black
Indices
Applied
Indexes
Lume
Super-LumiNova
Super-LumiNova ®

Movement

3 specs
Caliber
M100 COSC
Powermatic 80
Power Reserve
42h
80h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$875

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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.

Tissot Seastar 1000

Owners widely praise the Tissot Seastar 1000 for its value, solid build, and 300m water resistance, with reviewers highlighting its comfortable wearability and affordable price point for a sporty diver. Some owners find the bezel difficult to use and note glare from the crystal, while others criticize the lume and bracelet quality, with one owner describing the clasp as flimsy. Accuracy figures for the quartz models are excellent, and the Powermatic 80 movement is considered reliable. Overall, owners and reviewers rate the Tissot Seastar 1000 highly for its strong value proposition as a sporty, affordable everyday watch.

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