Side by side

Longines ULTRA-CHRON CLASSICvsZelos Nova 37

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

ULTRA-CHRON CLASSIC
LonginesULTRA-CHRON CLASSIC
MSRP $3,900
Nova 37
ZelosNova 37
MSRP $899

At a glance

22 of 29 specs differ
Diameter
ULTRA-CHRON CLASSIC37mm
Nova 3737mm
Power Reserve
ULTRA-CHRON CLASSIC52h
Nova 3740h
Water Resistance
ULTRA-CHRON CLASSIC50m
Nova 3750m
MSRP
ULTRA-CHRON CLASSIC$3,900
Nova 37$899

Full specifications

Case

7 specs
Category
Dress
Thickness
10.95mm
7mm
Lug-to-Lug
44.6mm
37mm
Lug Width
19mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Caseback
Screw-down case back
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Both sides
Inner
Dial Color
Silver
Salmon
Indices
Applied indexes
Applied
Lume
Super-LumiNova
None

Movement

8 specs
Caliber
L836.6
ETA 7001
Type
Automatic
Manual
Beat Rate
36,000 vph
28,800 vph
Power Reserve
52h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds and date
None

Pricing

1 specs
MSRP
$3,900
$899

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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.

Longines ULTRA-CHRON CLASSIC

The Longines ULTRA-CHRON CLASSIC is widely praised for its faithful retro design, high-beat 5Hz movement offering greater precision and a smooth seconds hand, and its value proposition as a new 5Hz watch. Reviewers highlight the L836.6 caliber's TimeLab "ultra chronometer" certification for superior accuracy and shock recovery, and owners find the bracelet very comfortable with easy micro-adjust. Some owners note the design appears dated, and one reviewer points out the dial lacks luminescence and water resistance is only 50m. Owners are split on sizing, with some finding the 40mm case wears larger than expected and recommending the 37mm version. Overall, owners and reviewers rate the Longines ULTRA-CHRON CLASSIC highly for its blend of vintage aesthetics, modern high-beat movement performance, and comfortable wearability.

Zelos Nova 37

Owners widely praise the Zelos Nova 37's spectacular 37mm dimensions and extremely light, thin wearability. The meteorite dial is frequently highlighted as a captivating feature, though some reviewers suggest simpler indices would improve legibility over the Arabic numerals. The watch is considered a considerable value at $1,999. On balance, owners and reviewers rate the Zelos Nova 37 highly for its excellent dimensions and dial execution at the price.

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