Side by side

Oris Big Crown DiamondsvsSeiko Prospex Sea

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
Prospex Sea
SeikoProspex Sea
MSRP $595

At a glance

18 of 29 specs differ
Diameter
Big Crown Diamonds34mm
Prospex Sea41.7mm
Power Reserve
Big Crown Diamonds42 hoursh
Prospex Sea41h
Water Resistance
Big Crown Diamonds50m
Prospex Sea200m
MSRP
Big Crown Diamonds$3,300
Prospex Sea$595

Full specifications

Case

8 specs
Category
Diver
Diameter
34mm
41.7mm
Thickness
12.3mm
Lug-to-Lug
49.5mm
Lug Width
17mm
20mm
Finish
Brushed and polished
Water Resistance
50m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Flat
AR Coating
Underside
Inner
Indices
Applied
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
531
4R35
Beat Rate
4 vph
28,800 vph
Power Reserve
42 hoursh
41h
Jewels
23

Pricing

1 specs
MSRP
$3,300
$595

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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.

Seiko Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

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