Side by side

Serica Ref. 5303 Diving ChronometervsFormex Essence Fortythree

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

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.

Formex Essence Fortythree

Owners widely praise the Formex Essence Fortythree for its comfortable wearability, excellent finishing for its price point, and a dial that plays well with light, with one owner noting the blue dial's variable appearance. The bracelet's micro-adjust system is functional, and the leather strap and deployant are considered exceptional. Reviewers highlight the watch's legible design and slim 10mm case, noting its significant value under $1,300. Some find the dial design derivative and the hardware-style logo out of place, while others consider the white dial stark. Consumer confusion exists regarding COSC versus non-COSC movement options. On balance, owners and reviewers rate the Formex Essence Fortythree highly for its luxury-level finishing and comfortable, value-driven design.

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Essence Fortythree43mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Essence Fortythree38h
Water Resistance
Ref. 5303 Diving Chronometer300m
Essence Fortythree100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Essence Fortythree$1,850

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39mm
43mm
Thickness
12.2mm
10.6mm
Lug-to-Lug
46.5mm
49mm
Lug Width
0mm
22mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Yes
Dial Color
Enamel Black
Black

Movement

3 specs
Caliber
Soprod M100
Sellita SW200-1
Power Reserve
42h
38h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,850
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