Side by side

Formex Reef 42 mmvsLongines SPIRIT ZULU TIME

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
SPIRIT ZULU TIME
LonginesSPIRIT ZULU TIME
MSRP $3,550

At a glance

21 of 29 specs differ
Diameter
Reef 42 mm42mm
SPIRIT ZULU TIME39mm
Power Reserve
Reef 42 mm56h
SPIRIT ZULU TIME72h
Water Resistance
Reef 42 mm300m
SPIRIT ZULU TIME100m
MSRP
Reef 42 mm$2,414
SPIRIT ZULU TIME$3,550

Full specifications

Case

9 specs
Category
Diver
GMT
Diameter
42mm
39mm
Thickness
11.4mm
13.5mm
Lug-to-Lug
47mm
46.8mm
Lug Width
22mm
21mm
Material
Stainless Steel
Ceramic
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid
Screw-down case back

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Black
Anthracite
Indices
Applied
Applied Arabic numerals

Movement

7 specs
Caliber
Sellita SW300-1
L844.4
Beat Rate
28,800 vph
25,200 vph
Power Reserve
56h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date, 24 hours hand with time zone mechanism

Pricing

1 specs
MSRP
$2,414
$3,550

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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.

Longines SPIRIT ZULU TIME

Owners widely praise the Longines Spirit Zulu Time for its excellent fit and finish, visual appeal, and value, with many preferring its thinner titanium case and color-matched date wheel. Reviewers highlight its legibility and comfortable 39mm wearability, while some owners note the bracelet could be weightier and lacks tool-less micro-adjustment. Accuracy figures range from +5 seconds per day to unspecified, and one owner reported condensation risk in hot tubs. On balance, owners and reviewers rate the Longines Spirit Zulu Time highly for its blend of tool-watch utility and segment-leading finishing at its price point.

From video reviewers

The 18k gold capped bezel insert is a notable feature, adding a touch of luxury to the watch. However, the watch's lume is not as bright as some reviewers would like, which is a drawback for those who prioritize good illumination. Reviewers disagree on the watch's functionality, with some considering it a compelling option and others feeling it doesn't quite live up to its design.

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