Side by side

Serica Ref. 5303 Diving ChronometervsPraesidus Jungle Field A-11 JFA

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
Jungle Field A-11 JFA
PraesidusJungle Field A-11 JFA
MSRP $550

At a glance

15 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Jungle Field A-11 JFA34mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Jungle Field A-11 JFA40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Jungle Field A-11 JFA50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Jungle Field A-11 JFA$550

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
39mm
34mm
Thickness
12.2mm
Lug-to-Lug
46.5mm
Lug Width
20mm
18mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Dark Brown Leather
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
TMI VH-31 Meca-Quartz
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$550

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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.

Praesidus Jungle Field A-11 JFA

The Praesidus Jungle Field A-11 JFA is praised for its modern interpretation of a classic military field watch, featuring a 38mm sandblasted case, double-domed sapphire crystal, and 100m water resistance. It is powered by a Miyota 9039 movement with a 42-hour power reserve, and its accuracy is rated at -10/+30 seconds per day, though reviewers note it often runs more accurately in practice. The watch presents a no-nonsense dial with vintage-style lume and Arabic numerals, retailing for $550. On balance, reviewers find the Praesidus Jungle Field A-11 JFA offers vintage charm and solid specifications at its price point.

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