Side by side

Formex Reef 39.5 mmvsSeiko Presage Classic Series Upcycled Leather Strap Limited Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

14 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Presage Classic Series Upcycled Leather Strap Limited Edition40.2mm
Power Reserve
Reef 39.5 mm56h
Presage Classic Series Upcycled Leather Strap Limited Edition72h
Water Resistance
Reef 39.5 mm300m
Presage Classic Series Upcycled Leather Strap Limited Edition100m
MSRP
Reef 39.5 mm$2,230
Presage Classic Series Upcycled Leather Strap Limited Edition$1,050

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39.5mm
40.2mm
Thickness
11mm
13mm
Lug-to-Lug
45.5mm
46mm
Lug Width
22mm
20mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Bahama Blue
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW300-1
6R55
Power Reserve
56h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$2,230
$1,050

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What people say

Owners + reviewers, side by side

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

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

Seiko Presage Classic Series Upcycled Leather Strap Limited Edition

The Seiko Presage Classic Series Upcycled Leather Strap Limited Edition is noted for its unique graduated "shiracha" dial and its upcycled leather straps from Regal. It features a 40.2mm stainless steel case and is powered by the 6R55 calibre, which offers a 72-hour power reserve. The movement has a specified accuracy of +25/-15 seconds per day. The watch is a limited edition of 3000 units and has a water resistance of 100m. It is priced at US$1,050. On balance, owners and reviewers highlight the distinctive dial and the sustainable strap material as key appeals of the Seiko Presage Classic Series Upcycled Leather Strap Limited Edition.

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