Side by side

Serica Réf. 6190 M.S.L.vsSeiko Prospex Sea

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

Réf. 6190 M.S.L.
SericaRéf. 6190 M.S.L.
MSRP $1,379
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Serica Réf. 6190 M.S.L.

Owners widely praise the Serica Réf. 6190 M.S.L. for its superior finishing for the price, comfortable and unique bonklip bracelet offering near-infinite microadjustment, and COSC-certified Soprod M100 movement. The watch is also noted for its chameleon-like dial, thin 10.2mm to 10.4mm case, and Omega-style lyre lugs. However, some owners find the bonklip clasp can accidentally undo itself if not worn tight, and a few believe the dial design, with its inward-set indicators and hands relative to the dial size, makes the watch appear smaller than its 37.7mm case, with one user returning it due to perceived clutter. On balance, owners rate the Serica Réf. 6190 M.S.L. highly for its exceptional finishing and comfortable, highly adjustable bracelet at its price point.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

At a glance

12 of 29 specs differ
Diameter
Réf. 6190 M.S.L.38mm
Prospex Sea41mm
Power Reserve
Réf. 6190 M.S.L.42h
Prospex Sea70h
Water Resistance
Réf. 6190 M.S.L.200m
Prospex Sea200m
MSRP
Réf. 6190 M.S.L.$1,379
Prospex Sea$900

Full specifications

Case

4 specs
Category
Diver
Diameter
38mm
41mm
Thickness
10.4mm
12.3mm
Lug-to-Lug
46.5mm
46.9mm

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Soprod M100
Seiko 6R35
Power Reserve
42h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$1,379
$900
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Serica Réf. 6190 M.S.L. vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.