Side by side

Baltic Scalegraph ClassicvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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

Scalegraph Classic
BalticScalegraph Classic
MSRP $1,712
Prospex Sea 1968 Heritage Diver's GMT
SeikoProspex Sea 1968 Heritage Diver's GMT
MSRP $1,500
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

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
Scalegraph Classic39.5mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
Scalegraph Classic63h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
Scalegraph Classic50m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
Scalegraph Classic$1,712
Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
39.5mm
42mm
Thickness
13.5mm
12.9mm
Lug-to-Lug
47mm
48.6mm
Water Resistance
50m
200m

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
$1,500
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