Side by side

Oris Big Crown DiamondsvsLongines PrimaLuna

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

Big Crown Diamonds
OrisBig Crown Diamonds
MSRP $3,300
PrimaLuna
LonginesPrimaLuna
MSRP $2,950

At a glance

20 of 29 specs differ
Diameter
Big Crown Diamonds34mm
PrimaLuna34mm
Power Reserve
Big Crown Diamonds42 hoursh
PrimaLuna72h
Water Resistance
Big Crown Diamonds50m
PrimaLuna30m
MSRP
Big Crown Diamonds$3,300
PrimaLuna$2,950

Full specifications

Case

7 specs
Category
Dress
Thickness
11.6mm
Lug-to-Lug
41mm
Lug Width
17mm
8mm
Finish
Water Resistance
50m
30m
Caseback
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Both sides
Dial Color
Black
Blue
Indices
Diamond indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
531
L899.5
Beat Rate
4 vph
25,200 vph
Power Reserve
42 hoursh
72h
Jewels
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$3,300
$2,950

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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.

Oris Big Crown Diamonds

Owners widely praise the Oris Big Crown Diamonds for its timeless design, vintage charm, and recognizable details like cathedral hands and the pointer date function. Reviewers highlight the stunning gradient dial and the "Bullseye" tuxedo dial as particularly beautiful. The 38mm case is considered versatile, and the watch offers remarkable value. However, some owners note the standard Sellita movement has a short power reserve and plain finishing, and the strap is not durable. A reviewer points out slightly imperfect Super-LumiNova printing on the hour numerals, and one owner finds the two-tone bracelet overly flashy. On balance, owners and reviewers rate the Oris Big Crown Diamonds highly for its unique design and value at its price point.

Longines PrimaLuna

Owners widely praise the Longines PrimaLuna for its stylish, understated design and comfortable 26.5mm and 34mm case sizes, with some preferring the quartz for its lower maintenance and others the automatic for its craftsmanship. The automatic movement, an L899.5 or Caliber L899, offers a 72-hour power reserve and exhibits consistent accuracy averaging a loss of 1.3 seconds per day in testing, though it runs 3-4 seconds slower on the wrist. The redesigned collection features a curvier case with contemporary lug integration and is available in steel or bi-metal. On balance, owners and reviewers appreciate the Longines PrimaLuna for its elegant styling and reliable automatic movement, though some find its brand prestige and design less compelling compared to certain luxury alternatives.

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