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Pick any two models to see their specs side by side. Rows that differ are highlighted.

Baltic Aquascaphe MK2 with blue dial and sapphire dive bezel, front view

Baltic

Aquascaphe
Mid-range · $600–900
Halios Seaforth IV Sunburst Blue fixed bezel titanium

Halios

Seaforth IV
Mid-range · $600–900
Brand
Baltic
Halios
Category
Dive
Dive
Diameter
39 mm
41 mm
Lug-to-lug
47 mm
46.5 mm
Thickness
13 mm
12.4 mm
Lug width
20 mm
20 mm
Water resistance
200 m
200 m
Crystal
double-dome sapphire with internal AR coating
sapphire, double-domed with anti-reflective coating
Type
Automatic
Automatic
Caliber
Miyota 9039 →
Sellita SW200-2 POWER+ →
Power reserve
42 h
65 h
Jewels
24
26
Lume
Super-LumiNova C1
Globolight XP dial markers, Super-LumiNova C3 X1 (blue)
Strap / bracelet
Rubber Sport FKM strap, steel beads-of-rice bracelet, or steel flat link bracelet
rubber strap (titanium bracelet + rubber strap package option)
Released
2018
2026
Price guide
$600–900
$600–900

Highlighted rows differ. For dimensions and reserve, the larger figure is shown in accent — larger isn't always better; choose by what fits your wrist and use.

Sources

Specifications compiled from official brand product pages and verified against independent retailer listings. Dimensions are manufacturer-stated. Prices are shown as broad bands, not exact figures. Last reviewed July 2026.