Side by side

Baltic Hermétique SummervsSpinnaker Spence 300

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

Hermétique Summer
BalticHermétique Summer
MSRP $594
Spence 300
SpinnakerSpence 300
MSRP $650

At a glance

12 of 29 specs differ
Diameter
Hermétique Summer37mm
Spence 30040mm
Power Reserve
Hermétique Summer42h
Spence 30040h
Water Resistance
Hermétique Summer150m
Spence 300300m
MSRP
Hermétique Summer$594
Spence 300$650

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
37mm
40mm
Thickness
10.8mm
11.5mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
150m
300m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Orange
Aquamarine
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9039
SII NH35A
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$594
$650

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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 Hermétique Summer

Reviewers highlight the Baltic Hermétique Summer's compact 37mm brushed case with a polished bezel and 150 meters of water resistance. The watch features glossy dials in bright colors with raised BGW9 Super-LumiNova indices that emit a strong blue glow, and it comes with color-matched FKM rubber straps or Baltic bracelets. The Miyota 9039 movement supports hacking and hand-winding. However, the recessed crown can be difficult to manipulate if fingernails are not long enough, and the movement has a stated accuracy of -10/+30 seconds per day. Overall, reviewers praise the Baltic Hermétique Summer for its well-balanced, colorful dials and strong lume at an affordable price point.

Spinnaker Spence 300

The Spinnaker Spence 300 is widely praised for its slim 10.9mm case and 40mm diameter, offering a comfortable and uncommon thin diver design at its price point. Reviewers and owners highlight its value, especially below $350, and its blend of retro design with modern specifications, including a 300m depth rating and a fully indexed bezel. Some owners, however, find the dial printing and bracelet finishing to be less refined, with one noting the bracelet's male end links as a drawback. The consensus is that the Spinnaker Spence 300 is highly regarded for its exceptional value and wearable dimensions, making it a strong contender for an everyday sports watch.

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