Side by side

Baltic MR ClassicvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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

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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 MR Classic

Owners widely praise the Baltic MR Classic's attractive dial with applied Breguet numerals and granular texture, noting it looks far more expensive than its price. Reviewers highlight the refined, dressy aesthetic and the visually appealing micro-rotor movement. Some owners report precise time-setting and a smooth winding action. Accuracy figures vary, with one owner seeing +1 second per day and another averaging +10 seconds per day. Concerns exist regarding the gold PVD finish's durability, with reports of wear from strap friction. The 36mm case is described as small, and some find the bezel chunky and the watch's overall height significant. The Chinese Hangzhou micro-rotor movement is noted as potentially noisy and difficult for local repair, though Baltic's customer service and warranty are praised. Overall, owners and reviewers rate the Baltic MR Classic highly for its dressy aesthetic and dial finishing at its price point.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and comfortable wearability, offering good value for its price point. Owners and reviewers highlight the attractive silver/white sunray dial, blue ceramic bezel, and the premium feel of the improved bracelet clasp with excellent micro-adjustment. The Caliber 6R54 movement provides a 72-hour power reserve, and real-world accuracy often exceeds its stated range of +25 to -15 seconds per day, with some owners reporting figures around +3 to +5 seconds per day. However, the caller-style GMT functionality is a point of contention for some, who find the GMT scale difficult to read and prefer a flyer GMT at this price. Some also find the crown position at 4 o'clock undesirable, and a few note a lack of dial contrast or illegibility of the inner bezel.

At a glance

13 of 29 specs differ
Diameter
MR Classic36mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
MR Classic42h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
MR Classic30m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
MR Classic$589
Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

5 specs
Category
Dress
Diver
Diameter
36mm
42mm
Thickness
9mm
12.9mm
Lug-to-Lug
44mm
48.6mm
Water Resistance
30m
200m

Crystal & Dial

4 specs
Crystal
Hesalite
Sapphire
AR Coating
Anti-reflective coating on inner surface
Dial Color
Blue
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Hangzhou 5000A
Seiko 6R54
Power Reserve
42h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$589
$1,500
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