Side by side

Serica Ref. 5303 Diving ChronometervsYema Superman Bronze CMM.10

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
Superman Bronze CMM.10
YemaSuperman Bronze CMM.10
MSRP $1,699

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Superman Bronze CMM.1039mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Superman Bronze CMM.1040h
Water Resistance
Ref. 5303 Diving Chronometer300m
Superman Bronze CMM.10300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Superman Bronze CMM.10$1,699

Full specifications

Case

4 specs
Thickness
12.2mm
11mm
Lug-to-Lug
46.5mm
Lug Width
20mm
19mm
Material
Stainless Steel
Bronze

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Enamel Black
Bronze
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Yema CMM.10
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,699

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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.

Yema Superman Bronze CMM.10

The Yema Superman Bronze CMM.10 is praised for its neo-vintage dive watch aesthetic, featuring a bronze case with brushed and polished finishing and a gradient blue sandwich dial with Super-LumiNova. It is powered by the in-house CMM.10 automatic movement, which offers a 70-hour power reserve and chronometric precision rated at -3/+5 seconds per day. The watch is available in 39mm and 41mm case sizes and comes on FKM Viton rubber straps. It was offered at a pre-order price of €999. Overall, reviewers highlight the Yema Superman Bronze CMM.10 as a refined neo-vintage dive watch with a capable in-house movement and attractive finishing.

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