Side by side

Serica Ref. 5303 Diving ChronometervsYema Superman Heritage GMT Bronze

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 Heritage GMT Bronze
YemaSuperman Heritage GMT Bronze
MSRP $1,499

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Superman Heritage GMT Bronze39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Superman Heritage GMT Bronze40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Superman Heritage GMT Bronze300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Superman Heritage GMT Bronze$1,499

Full specifications

Case

5 specs
Category
Diver
GMT
Thickness
12.2mm
11.7mm
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
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,499

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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 Heritage GMT Bronze

The Yema Superman Heritage GMT Bronze is widely praised for its comfortable 39mm wearability and the value it offers, featuring an in-house GMT movement and bronze case. Owners and reviewers highlight the firm 120-click bezel, the impressive gilt markers and gradient dial, and the exceptionally soft and comfortable vintage leather strap. Some prefer a ceramic insert over aluminum, and one owner noted the bracelet clasp was stiff initially. The lume on the hands appears pale compared to the dial's richer coloration, and the bezel lock may not sit perfectly centered. The Yema Superman Heritage GMT Bronze is considered a bargain, with pricing noted around 700-750 Euros. On balance, owners and reviewers rate the Yema Superman Heritage GMT Bronze highly for its exceptional value and comfortable wearability.

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