Serica Ref. 5303 Diving ChronometervsTraska Seafarer Charcoal

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Serica Ref. 5303 Diving Chronometer at true scale

Ref. 5303 Diving Chronometer

Traska Seafarer Charcoal at true scale

Seafarer Charcoal

Diameter

39mm

40mm

Lug-to-Lug

46.5mm

n/a

Thickness

12.2mm

n/a

Water Resistance

300m

highest

150m

Power Reserve

42h

42h

MSRP

$1,768

$665

lowest

Movement

Soprod M100

Miyota 9039

Case

7 specs
Diameter
39mm
40mm
Thickness
12.2mm
n/a
Lug-to-Lug
46.5mm
n/a
Lug Width
n/a
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
n/a
Brushed + Polished
Water Resistance
300m
150m

Crystal & Dial

3 specs
AR Coating
Yes
Underside
Dial Color
Enamel Black
Charcoal Black
Lume
Super-LumiNova
Super-LumiNova BGW9

Movement

4 specs
Caliber
Soprod M100
Miyota 9039
Beat Rate
0 vph
28,800 vph
Jewels
0
24
Complications
COSC
Chronograph

Pricing

1 specs
MSRP
$1,768
$665
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Reviews

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, unique style, and smooth, confident bezel action with a useful dual scale. The winding, hacking, and crown action are reported to be working perfectly, and timekeeping is consistently good, with one owner noting it kept good time over eight months. Some owners find the crown to be comically large, though this is a minority view. Overall, owners rate the Serica Ref. 5303 Diving Chronometer highly for its wearability and distinctive design.

Traska Seafarer Charcoal

The Traska Seafarer Charcoal is widely praised for its exceptional value, comfortable bracelet with on-the-fly adjustment, and durable construction featuring a proprietary scratch-resistant coating. Owners appreciate its attractive, versatile design and retro aesthetic, with many finding it a perfect daily wearer or beater watch that looks even better in person. Some owners report issues with rotor problems or misalignment, and one user found the 12 o'clock indices crooked. The strap is noted by one owner as feeling cheap, and the 150m water resistance is considered low by one owner for an internal bezel watch. Overall, owners and reviewers rate the Traska Seafarer Charcoal highly for its impressive specifications and build quality at its price point.

From video reviewers

The Traska Seafarer Charcoal's notable strength is its refined finishing, which elevates it from a field watch to a luxury-like piece. A shared weakness is the dim lume, which may be a drawback for those who value nighttime visibility. Reviewers disagree on the watch's build, with one reviewer noting a more substantial build and larger case size, while the other does not mention this feature.