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

Unimatic Modello Tre UC3 Classic chronograph diver, front view on black NATO strap

Unimatic

Modello Tre UC3
Mid-range · $600–900
Baltic Aquascaphe MK2 with blue dial and sapphire dive bezel, front view

Baltic

Aquascaphe
Mid-range · $600–900
Brand
Unimatic
Baltic
Category
Dive
Dive
Diameter
41.5 mm
39 mm
Lug-to-lug
51 mm
47 mm
Thickness
13.7 mm
13 mm
Lug width
22 mm
20 mm
Water resistance
300 m
200 m
Crystal
sapphire
double-dome sapphire with internal AR coating
Type
Meca-quartz
Automatic
Caliber
Seiko VK64 →
Miyota 9039 →
Power reserve
—
42 h
Jewels
0
24
Lume
Super-LumiNova C3
Super-LumiNova C1
Strap / bracelet
black NATO nylon strap
rubber FKM strap or steel beads-of-rice bracelet
Released
2021
2018
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 June 2026.