Side by side

Baltic Prismic StonevsSeiko Prospex Sea

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

Prismic Stone
BalticPrismic Stone
MSRP $1,404
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

14 of 29 specs differ
Diameter
Prismic Stone36mm
Prospex Sea43.8mm
Power Reserve
Prismic Stone50h
Prospex Sea41h
Water Resistance
Prismic Stone30m
Prospex Sea200m
MSRP
Prismic Stone$1,404
Prospex Sea$625

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
36mm
43.8mm
Thickness
9.2mm
12.8mm
Lug-to-Lug
44mm
48.7mm
Lug Width
20mm
22mm
Water Resistance
30m
200m

Crystal & Dial

3 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Bloodstone
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
La Joux-Perret D100
4R35
Type
Manual
Automatic
Power Reserve
50h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$1,404
$625

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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.

Baltic Prismic Stone

Owners and reviewers widely praise the Baltic Prismic Stone for its striking and unique natural stone dials, with specific mentions of the bloodstone and red agate variants being highlights. The watch is noted for its refined, retro dress watch aesthetic, featuring a well-finished 36mm bi-metal case combining stainless steel and titanium, and a slim profile measuring 9.2mm or 9.5mm thick. The hand-wound movement, either an ETA Peseux 7001 or a La Joux-Perret D100, is generally seen as reliable, offering a 42-hour or 50-hour power reserve respectively. However, some owners find the collection overpriced and the small, recessed crown uncomfortable for winding. The Milanese bracelet is also a point of contention, with some finding it may not articulate well for smaller wrists. Accuracy figures vary, with one owner reporting +1/+2 seconds per day and another around -6 seconds per day.

From video reviewers

The unique natural stone dials are a standout feature of the Baltic Prismic Stone. The slim 9mm case, constructed from stainless steel and Grade 5 titanium, is also a notable aspect. However, some buyers may find the price of €1,300 to be a trade-off, considering the watch's Swiss movement and slim profile may not justify the cost compared to competitors.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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