Side by side

Formex Reef 42 mmvsSeiko King Seiko KS1969

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

Reef 42 mm
FormexReef 42 mm
MSRP $2,414
King Seiko KS1969
SeikoKing Seiko KS1969
MSRP $3,100

At a glance

13 of 29 specs differ
Diameter
Reef 42 mm42mm
King Seiko KS196939.4mm
Power Reserve
Reef 42 mm56h
King Seiko KS196945h
Water Resistance
Reef 42 mm300m
King Seiko KS196950m
MSRP
Reef 42 mm$2,414
King Seiko KS1969$3,100

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
42mm
39.4mm
Thickness
11.4mm
9.9mm
Lug-to-Lug
47mm
43.6mm
Lug Width
22mm
19mm
Water Resistance
300m
50m

Crystal & Dial

3 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW300-1
6L35
Power Reserve
56h
45h
Jewels
25
26

Pricing

1 specs
MSRP
$2,414
$3,100

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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 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

Seiko King Seiko KS1969

The King Seiko KS1969 is praised for its Grand Seiko-level finishing and a slim 9.9mm case, with one owner noting it is indistinguishable from new and includes original packaging. However, the $3,100-$3,200 price point is widely questioned, with some finding the looks pedestrian and the branding jarring. Accuracy from the 6L35 movement is noted as +15/-10 seconds per day, and some owners feel the new case shape, dial colors, and end links deviate from the classic KS aesthetic. On balance, owners and reviewers are divided on the King Seiko KS1969, with the high price and modern design choices being the primary points of contention.

From video reviewers

The slim case profile under 10mm and compact lug-to-lug dimensions provide a comfortable fit. The dial's modern appeal and the collection's homage to vintage pieces are highlighted. Reviewers did not reach a consensus on any weaknesses or points of disagreement.

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