Beaufort SeatrekkervsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

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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.

Beaufort Seatrekker at true scale

Seatrekker

Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition at true scale

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

Diameter

39mm

40.5mm

Lug-to-Lug

n/a

47.6mm

Thickness

12.6mm

lowest

13.2mm

Water Resistance

200m

200m

Power Reserve

42h

70h

highest

MSRP

$345

lowest

$1,250

Movement

Miyota 9039

Seiko 6R35

Case

4 specs
Diameter
39mm
40.5mm
Thickness
12.55mm
13.2mm
Lug-to-Lug
n/a
47.6mm
Lug Width
n/a
20mm

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Blue
n/a
Lume
C3 Super-LumiNova applied to indices and hands for low-light readability.
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
Seiko 6R35
Power Reserve
42h
70h
Jewels
0
24

Pricing

1 specs
MSRP
$345
$1,250
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Reviews

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

Beaufort Seatrekker

The Beaufort Seatrekker is praised for its sharp case, intriguing dégradé dial, and good value around €600. One owner found the included TPU strap fit problematic, noting that an optional steel bracelet significantly improved wearability and perceived quality. The watch ran at +5-10 seconds per day during testing. On balance, owners and reviewers rate the Beaufort Seatrekker highly for its case finishing and dial design at its price point.

From video reviewers

The case finishing is a strength. The lume brightness was not agreed upon.

Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition for its unique dial color and execution, with one owner noting the 44mm lug-to-lug is perfect for most wrists. The watch is considered a refined piece with a fun factor, featuring a dial inspired by Okinawa's ocean colors expected to have a bright sunburst effect. Accuracy figures for the 6R35 movement range, with one owner reporting -10/+10 seconds per day as "pretty amazing," while others note issues with the 6R movement's accuracy. Some owners find the price of 1500€ too high, suggesting a value closer to 900€. On balance, owners and reviewers rate the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition well for its dial execution and wearability, despite some debate over its price point.

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