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

Baltic

Aquascaphe
Mid-range · $600–900
Atlas GMT case/profile candidate image

Monta

Atlas GMT
Premium · $1,300+
Brand
Baltic
Monta
Category
Dive
GMT
Diameter
39 mm
38.5 mm
Lug-to-lug
47 mm
47 mm
Thickness
13 mm
10.7 mm
Lug width
20 mm
20 mm
Water resistance
200 m
150 m
Crystal
double-dome sapphire with internal AR coating
sapphire
Type
Automatic
Automatic
Caliber
Miyota 9039 →
Monta M-23 →
Power reserve
42 h
56 h
Jewels
24
25
Lume
Super-LumiNova C1
Super-LumiNova BGW9
Strap / bracelet
rubber FKM strap or steel beads-of-rice bracelet
steel bracelet
Released
2018
2019
Price guide
$600–900
$1,300+

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.