Side by side

Serica Ref. 5303 Diving ChronometervsLorier Roosevelt

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
Roosevelt
LorierRoosevelt
MSRP $799

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Roosevelt38mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Roosevelt40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Roosevelt
MSRP
Ref. 5303 Diving Chronometer$1,768
Roosevelt$799

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39mm
38mm
Thickness
12.2mm
Lug-to-Lug
46.5mm
Lug Width
20mm
18mm
Water Resistance
300m

Crystal & Dial

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

Movement

4 specs
Caliber
M100 COSC
Type
Automatic
Manual
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$799

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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.

Lorier Roosevelt

Owners widely praise the Lorier Roosevelt's stunning dial, precise stamping, and clean printing, with its brass case and Horween strap also receiving positive remarks. Some owners find it wears perfectly on a 7" wrist. However, the Miyota 9-series rotor is noted as being "insanely loud," and the original $800 price point is considered steep by some, particularly given the lack of lume and competition. One owner sold it for $525, highlighting it as a great deal on a sold-out item. Overall, owners value the Lorier Roosevelt for its attractive dial and case finishing, though price and rotor noise are points of contention.

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