Boderry Seaturtle.Ocean DivervsSeiko Prospex Sea

Seaturtle.Ocean Diver
BoderrySeaturtle.Ocean Diver

Ref. seaturtle-titanium-automatic-diver-watch-green-bracelet·MSRP $249

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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.

Boderry Seaturtle.Ocean Diver at true scale

Seaturtle.Ocean Diver

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

40mm

41mm

Lug-to-Lug

n/a

46.9mm

Thickness

12.5mm

12.3mm

lowest

Water Resistance

100m

200m

highest

Power Reserve

n/a

70h

MSRP

$249

lowest

$900

Movement

Seiko NH35

Seiko 6R35

Case

5 specs
Diameter
40mm
41mm
Thickness
12.5mm
12.3mm
Lug-to-Lug
n/a
46.9mm
Lug Width
n/a
20mm
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
Seiko 6R35
Power Reserve
0h
70h
Jewels
0
24

Pricing

1 specs
MSRP
$249
$900
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Boderry Seaturtle.Ocean Diver

Owners widely praise the Boderry SEATURTLE.OCEAN - Automatic Diver Watch (NH35 movement) for its exceptional value, citing its original design, sapphire crystal, and thin 11.7mm profile for an NH35 movement. One owner reports an accuracy of -1 second per day, while another notes the titanium case and 100m water resistance are well-executed. Some owners report issues with the NH35 movement stopping, though others have had no problems with the brand. A rattling sound, noted by some owners, is considered normal for the NH35 movement and is deemed acceptable given the low price point. Overall, owners rate the Boderry SEATURTLE.OCEAN - Automatic Diver Watch (NH35 movement) highly for its impressive feature set and design at its price point.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its value and robust build, with many highlighting its excellent lume and attractive design. Some owners find the 41mm case size perfect, while others with smaller wrists consider it too large, thick, and heavy. The stock rubber strap is noted as uncomfortable for land wear by one owner. Overall, owners rate the Seiko Prospex Sea highly for its design and value at the price point.