Formex Reef 42 mmvsSeiko Prospex Sea PADI 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.

Formex Reef 42 mm at true scale

Reef 42 mm

Seiko Prospex Sea PADI Special Edition at true scale

Prospex Sea PADI Special Edition

Diameter

42mm

41.7mm

Lug-to-Lug

47mm

lowest

49.5mm

Thickness

11.4mm

lowest

12.3mm

Water Resistance

300m

highest

200m

Power Reserve

56h

highest

41h

MSRP

$2,414

$650

lowest

Movement

Sellita SW300-1

Seiko 4R35

Case

5 specs
Diameter
42mm
41.7mm
Thickness
11.4mm
12.3mm
Lug-to-Lug
47mm
49.5mm
Lug Width
22mm
20mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Black
n/a
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW300-1
Seiko 4R35
Power Reserve
56h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$2,414
$650
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Reviews

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

Formex Reef 42 mm

Owners widely praise the Formex Reef 42 mm for its comfortable bracelet with a micro-adjust clasp and its overall build and finish, with one owner strongly recommending it. Reviewers highlight its impressive wearability and versatility, noting the COSC-certified Sellita SW300-1 movement and well-finished bracelet. One owner found the lugs' taper hinders third-party strap fit and observed the seconds hand does not perfectly align with markers. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its comfortable bracelet and solid build at its price point.

Seiko Prospex Sea PADI Special Edition

Owners widely praise the Seiko Prospex Sea PADI Special Edition for its value, attractive PADI color scheme, and excellent lume. Reviewers highlight its proven design, strong functionality, and classic Seiko diver charm, with a matte black dial and large markers being a common point of appreciation. The bezel action is noted as being smoother and more precise than previous models, and the build quality is described as amazing. Some owners find the dial's wave pattern a favorite, though it may not stand out without direct light. The movement's stated accuracy range is +45 to -35 seconds per day, and the divers extension is a point of disappointment for some due to difficulty in opening. The bracelet adjustment is also noted as a pain point, though manageable. Overall, owners and reviewers rate the Seiko Prospex Sea PADI Special Edition highly for its exceptional value and classic diver aesthetic.