Side by side

Formex Reef 39.5 mmvsSpinnaker Hull Chronograph

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
Hull Chronograph
SpinnakerHull Chronograph
MSRP $149

At a glance

12 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Hull Chronograph42mm
Power Reserve
Reef 39.5 mm56h
Hull Chronograph40h
Water Resistance
Reef 39.5 mm300m
Hull Chronograph100m
MSRP
Reef 39.5 mm$2,230
Hull Chronograph$149

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
39.5mm
42mm
Thickness
11mm
15mm
Lug-to-Lug
45.5mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Bahama Blue
Maroon
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW300-1
Seiko VK64
Type
Automatic
Quartz
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,230
$149

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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.

Spinnaker Hull Chronograph

Owners widely praise the Spinnaker Hull Chronograph for its stunning textured dial and impressive value, with a meca-quartz movement offering quartz accuracy and mechanical chronograph function. The build quality, including a milled clasp, solid links, and sapphire crystal with AR coating, is noted as exceeding expectations for the price. One owner finds the 42mm case wearable due to short lugs, while another describes the dial as gorgeous and the watch as running perfectly. However, one owner reports a $198 repair quote for a cracked crystal, described as "fused to the case," though other forum members dispute this cost. The lume is considered mediocre, and the 24-hour subdial is seen by one owner as functionally futile. On balance, owners rate the Spinnaker Hull Chronograph highly for its exceptional dial and build quality at its price point.

From video reviewers

The Spinnaker Burnt Maroon features a reliable and accurate Seiko VK73 movement. A suitable lug-to-lug fit makes it suitable for smaller wrists. The watch's 15mm thickness may be a drawback for some, particularly those with smaller wrists or those who prefer a more compact watch.

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