Serica Ref. 5303 Diving ChronometervsGeckota Ocean-Scout Dive

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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

Geckota Ocean-Scout Dive at true scale

Ocean-Scout Dive

Diameter

39mm

38.5mm

Lug-to-Lug

46.5mm

n/a

Thickness

12.2mm

11.8mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

42h

n/a

MSRP

$1,768

$375

lowest

Movement

Soprod M100

Miyota 9039

Case

6 specs
Diameter
39mm
38.5mm
Thickness
12.2mm
11.8mm
Lug-to-Lug
46.5mm
n/a
Lug Width
n/a
n/a
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Yes
n/a
Dial Color
Enamel Black
White
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Soprod M100
Miyota 9039
Power Reserve
42h
0h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$375
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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.

Geckota Ocean-Scout Dive

The Geckota Ice White is praised for its elegant design, featuring a hand-polished German lacquer dial with art-deco numerals and a case with a textural contrast between polished and brushed finishes. Reviewers note its 100-meter water resistance, though one would prefer a screw-down crown over the push-pull version, and the ETA-7001 movement is described as reliable but dated. On balance, the Geckota Ice White is well-regarded for its refined aesthetics and finishing at its price point.

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