Side by side

Spinnaker FleussvsLongines ULTRA‑CHRON CARBON

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

Fleuss
SpinnakerFleuss
MSRP $179
ULTRA‑CHRON CARBON
LonginesULTRA‑CHRON CARBON
MSRP $5,550

At a glance

19 of 29 specs differ
Diameter
Fleuss43mm
ULTRA‑CHRON CARBON43mm
Power Reserve
Fleuss40h
ULTRA‑CHRON CARBON52h
Water Resistance
Fleuss150m
ULTRA‑CHRON CARBON300m
MSRP
Fleuss$179
ULTRA‑CHRON CARBON$5,550

Full specifications

Case

6 specs
Thickness
13mm
14mm
Lug-to-Lug
51mm
48.9mm
Material
316L Stainless Steel
Titanium
Finish
Brushed and polished
Water Resistance
150m
300m
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Lumber Black
Silver
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
SII NH35A
L836.6
Beat Rate
28,800 vph
36,000 vph
Power Reserve
40h
52h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds

Pricing

1 specs
MSRP
$179
$5,550

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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.

Spinnaker Fleuss

Owners widely praise the Spinnaker Fleuss for its retro design, textured dial, and good value, with many noting it looks better in person than in photos. The watch is appreciated for its robust construction and finishing, especially when found at a discount. Some owners report good timekeeping and a decent power reserve. However, the Spinnaker Fleuss GMT is criticized by some for its large case size, which can affect proportions and numeral legibility. One owner experienced a broken crown after a fall, while another noted concerns about the acrylic bezel's durability. The lume is described as adequate but not exceptional. Overall, owners rate the Spinnaker Fleuss highly for its retro aesthetic and value proposition, particularly when purchased on sale.

Longines ULTRA‑CHRON CARBON

The Longines ULTRA‑CHRON CARBON is praised for its lightweight composite case and unique "Batman" aesthetic, with its 5Hz movement widely noted for exceptional accuracy. Owners widely report the high-beat movement is the cheapest 5Hz option available. Some owners find the non-rotating bezel a relief, while others consider it a deal-breaker, noting the watch is no longer a dive watch. On balance, owners and reviewers highly rate the Longines ULTRA‑CHRON CARBON for its cool, lightweight design and the exceptional accuracy of its 5Hz movement.

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