Click to inspect
Borealis Watch Co. Sea Storm MK2 GMT
Case
- Diameter
- 41.5mm
- Thickness
- 14.15mm
- Lug-to-lug
- 48.5mm
- Lug width
- 20mm
- Material
- Stainless Steel
- Water resistance
- 300m
Crystal & dial
- Crystal
- Sapphire
- Lume
- BGW9
Movement
- Caliber
- Seiko NH34
- Type
- Automatic
- Hacking
- No
- Hand-winding
- No
- Complications
- Time only
Seiko
A Seiko (TMI / Seiko Instruments) automatic GMT caliber — the export-market designation of the Seiko 4R34 — that adds a 24-hour fourth hand to the NH35 / 4R35 base. It runs at 21,600 vph with about 41 hours of power reserve, hacks and hand-winds, and has become the default affordable GMT for microbrands.
Design language
- Case shape
- round
- Dial style
- matte
- Bezel
- gmt
- Bracelet
- lug-attached
- Hands
- baton
AI-detected from the product image
Sea Storm MK2 GMT collection · 2 watches
9 colorways
The connection engine
More like this.
The community take
Owners talk.
In a nutshell
The Borealis Watch Co. Sea Storm MK2 GMT is an automatic diver watch, with a 41.5mm stainless steel case, 14.15mm thick, powered by the Seiko NH34 movement. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $415.
On real wrists
No shots yet. Show how it wears.
The paper trail
Popular comparisons
The matchups people make with the Borealis Watch Co. Sea Storm MK2 GMT most — open one to see it side by side.
The discussion