Side by side

Serica Ref. 5303 Diving ChronometervsLorier Hyperion SII Skyward

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
Hyperion SII Skyward
LorierHyperion SII Skyward
MSRP $599

At a glance

11 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Hyperion SII Skyward39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Hyperion SII Skyward40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Hyperion SII Skyward200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Hyperion SII Skyward$599

Full specifications

Case

4 specs
Category
Diver
GMT
Thickness
12.2mm
Lug-to-Lug
46.5mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Skyward
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$599

Follow this matchup

Get a note when Serica Ref. 5303 Diving Chronometer vs Lorier Hyperion SII Skyward gets more votes, a community discussion, or a price drop. No account needed.

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.

Lorier Hyperion SII Skyward

Owners widely praise the Lorier Hyperion SII Skyward for its comfortable, thin, and light wearability, with one owner noting a perfect case width and another highlighting its 10.7mm thickness. The bi-directional GMT bezel is described as decent for its price, and the movement is considered fine and accurate, making it a low-key travel watch. The bracelet is also noted as well-made and finished for the price. On balance, owners rate the Lorier Hyperion SII Skyward highly for its comfortable wearability and value as a mechanical GMT.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.