Which is cheaper, the Spinnaker Fleuss 40 Automatic or the Longines ULTRA‑CHRON CARBON?

At MSRP the Spinnaker Fleuss 40 Automatic is the cheaper of the two at $450, against $5,550 for the Longines ULTRA‑CHRON CARBON — a $5,100 gap before any retailer discounting.

Which is bigger, the Spinnaker Fleuss 40 Automatic or the Longines ULTRA‑CHRON CARBON?

The Longines ULTRA‑CHRON CARBON wears larger at 43mm versus 40mm for the Spinnaker Fleuss 40 Automatic — a 3mm difference across the dial.

Which has better water resistance, the Spinnaker Fleuss 40 Automatic or the Longines ULTRA‑CHRON CARBON?

The Longines ULTRA‑CHRON CARBON is rated to 300m versus 150m for the Spinnaker Fleuss 40 Automatic.

Which has a longer power reserve, the Spinnaker Fleuss 40 Automatic or the Longines ULTRA‑CHRON CARBON?

The Longines ULTRA‑CHRON CARBON carries a 52-hour power reserve against 40 hours on the Spinnaker Fleuss 40 Automatic.

What movement does the Spinnaker Fleuss 40 Automatic run compared to the Longines ULTRA‑CHRON CARBON?

Both watches run automatic movements — the Spinnaker Fleuss 40 Automatic uses the SII NH35A and the Longines ULTRA‑CHRON CARBON uses the L836.6.

Side by side

Spinnaker Fleuss 40 AutomaticvsLongines ULTRA‑CHRON CARBON

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

Spinnaker Fleuss 40 Automatic

fleuss-40-automatic-145th-limited-edition-coral-red-sp-5133-77

MSRP $450

Longines ULTRA‑CHRON CARBON

L2.839.4.52.2

MSRP $5,550

At a glance

21 of 29 specs differ

Diameter

Fleuss 40 Automatic40mm

ULTRA‑CHRON CARBON43mm

Power Reserve

Fleuss 40 Automatic40h

ULTRA‑CHRON CARBON52h

Water Resistance

Fleuss 40 Automatic150m

ULTRA‑CHRON CARBON300m

MSRP

Fleuss 40 Automatic$450

ULTRA‑CHRON CARBON$5,550

Full specifications

Case

8 specs

Diameter

40mm

43mm

Thickness

11mm

14mm

Lug-to-Lug

47mm

48.9mm

Lug Width

20mm

22mm

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

Coral

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

Hacking

Yes

Hand-winding

Yes

Complications

None

Hours, minutes, seconds

Pricing

1 specs

MSRP

$450

$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 40 Automatic

Owners find the Spinnaker Fleuss 40 Automatic a good size for smaller wrists, though one owner notes the lume is too diffuse for easy nighttime reading. The pilot-style crown is an unusual feature for a dive watch. Overall, owners value the Spinnaker Fleuss 40 Automatic for its wearability on smaller wrists.

From video reviewers

The coral red dial is a unique aesthetic. The watch is a strong contender for best-in-class under $300.

A Blog to Watch

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.

Monochrome

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