Side by side

Baltic Scalegraph ClassicvsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

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

Scalegraph Classic
BalticScalegraph Classic
MSRP $1,712

At a glance

13 of 29 specs differ
Diameter
Scalegraph Classic39.5mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Scalegraph Classic63h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Scalegraph Classic50m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Scalegraph Classic$1,712
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
39.5mm
42mm
Thickness
13.5mm
13.3mm
Lug-to-Lug
47mm
48.6mm
Water Resistance
50m
300m

Crystal & Dial

3 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Panda
Black
Lume
BGW9
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Sellita SW510-M
6R54
Type
Manual
Automatic
Power Reserve
63h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,712
$1,700

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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 Scalegraph Classic

Owners widely praise the Baltic Scalegraph Classic for its stunning retro racing design, detailed dial, and 39.5mm case size, with many finding it offers excellent value. However, some owners report issues with finishing and fit, describing the watches as light or "toylike," while others find the finishing comparable to higher-end brands. Reviewers and owners alike criticize the screw-down chronograph pushers as finicky and impractical, especially given the 100m water resistance which some feel is conceptually incongruent with its rally timer purpose. One owner experienced misaligned bezel markers and moisture ingress after pool use, leading to a return. On balance, owners and reviewers value the Baltic Scalegraph Classic's aesthetic and value proposition, though practical usability concerns regarding the chronograph pushers and isolated quality control issues are noted.

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch offers a 300-meter depth rating and a caller-style GMT complication powered by the Caliber 6R54 movement, which provides a 72-hour power reserve. Reviewers note its refined clasp with extensive micro-adjustment. However, the movement's accuracy, ranging from +25 to -15 seconds per day, is considered a drawback by some. Overall, reviewers highlight the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch as a good reminder of Seiko's value, despite the wide accuracy range of its movement.

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