Side by side

Baltic Aquascaphe Dual-Crown - Black PVDvsLongines ULTRA‑CHRON CARBON

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

Aquascaphe Dual-Crown - Black PVD
BalticAquascaphe Dual-Crown - Black PVD
MSRP $724
ULTRA‑CHRON CARBON
LonginesULTRA‑CHRON CARBON
MSRP $5,550

At a glance

21 of 29 specs differ
Diameter
Aquascaphe Dual-Crown - Black PVD39mm
ULTRA‑CHRON CARBON43mm
Power Reserve
Aquascaphe Dual-Crown - Black PVD42h
ULTRA‑CHRON CARBON52h
Water Resistance
Aquascaphe Dual-Crown - Black PVD200m
ULTRA‑CHRON CARBON300m
MSRP
Aquascaphe Dual-Crown - Black PVD$724
ULTRA‑CHRON CARBON$5,550

Full specifications

Case

8 specs
Diameter
39mm
43mm
Thickness
11mm
14mm
Lug-to-Lug
47mm
48.9mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Both sides
Dial Color
Crown - Black PVD - Black
Silver
Indices
Applied
Applied indexes
Lume
BGW9
Super-LumiNova

Movement

7 specs
Caliber
Miyota 9039
L836.6
Beat Rate
28,800 vph
36,000 vph
Power Reserve
42h
52h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds

Pricing

1 specs
MSRP
$724
$5,550

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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 Aquascaphe Dual-Crown - Black PVD

The Baltic Aquascaphe Dual-Crown - Black PVD is widely praised for its refined case finishing, including polished chamfers and brushed lugs, and its comfortable, wearable 39mm size. Reviewers highlight its clean dial design and excellent legibility, with some noting improved legibility from larger lume-filled markers. The functional internal bezel, operated by a non-screw-down crown, is a key feature for dive timing. The watch utilizes a Miyota 9039 automatic movement with a 42-hour power reserve and hacking seconds. One reviewer found the 4 o'clock crown for time setting to be fiddly, and another noted the sapphire crystal can be somewhat reflective. The price is cited as €550 or €650 (ex VAT). On balance, reviewers commend the Baltic Aquascaphe Dual-Crown - Black PVD for its vintage-inspired aesthetic combined with modern build quality and wearability at its price point.

Longines ULTRA‑CHRON CARBON

The Longines ULTRA‑CHRON CARBON is praised for its lightweight composite case and unique "Batman" aesthetic, with its 5Hz movement widely noted for exceptional accuracy. Owners widely report the high-beat movement is the cheapest 5Hz option available. Some owners find the non-rotating bezel a relief, while others consider it a deal-breaker, noting the watch is no longer a dive watch. On balance, owners and reviewers highly rate the Longines ULTRA‑CHRON CARBON for its cool, lightweight design and the exceptional accuracy of its 5Hz movement.

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