sharp office watch
The 40mm rounded-octagonal bezel and horizontal-grooved black dial look great with a button-down shirt in meetings. Thin enough to clear my cuffs easily and feels balanced on my wrist.
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The watch
The Bersigar Polaris 1728 Silver Black is a 40mm integrated-bracelet watch with a horizontal-grooved obsidian black dial, powered by a Seagull ST6 automatic movement. Highlights include 100m water resistance and a sapphire crystal. On the ChronoSeasons dial it sits at Hour III — Integrated Sport, part of the Boardroom season — and suits the office-to-dinner day.
BERSIGAR Polaris 1728: Silver Black Edition
The BERSIGAR Polaris 1728 Silver Black delivers quintessential integrated-sports horology executed in a timeless monochromatic palette. Engineered with a sculpted 40mm rounded-octagonal case, an integrated tapered steel bracelet, and an obsidian black horizontally embossed dial, this automatic timepiece balances structural vintage heritage with versatile everyday elegance.
Powered by the Seagull ST6 automatic mechanical caliber, the movement provides kinetic self-winding reliability with central hours, minutes, and sweeping seconds. The deep black dial features horizontal grooves, applied polished baton indices treated with strong luminescence, and matching luminous hands for high-contrast legibility. Crafted from solid 316L brushed and polished stainless steel, the watch is equipped with an anti-reflective sapphire crystal, a threaded screw-down crown with protective lateral hinges, and 10 BAR (100M) water resistance.
Key Highlights
Seagull ST6 Automatic Caliber: Kinetic self-winding mechanical movement delivering dependable timekeeping powered by natural wrist motion.
Integrated Rounded-Octagonal Geometry: Sculpted 40mm case featuring brushed planar surfaces, polished chamfered bevels, and signature lateral side-hinge accents.
Horizontal Grooved Black Dial: Textured linear dial in deep obsidian black, applied luminous baton indices, and a clean, non-numeral layout.
Integrated Solid Steel Bracelet: Custom-fitted tapered stainless steel link bracelet paired with a low-profile folding deployant mechanism.
Anti-Reflective Sapphire Crystal: Scratch-resistant sapphire glass enhanced with anti-reflective and fingerprint coatings for lasting clarity.
10 BAR (100M) Water Resistance: Screw-down crown and sealed caseback engineered for reliable water protection and active daily use.
Technical Specifications
| Specification | Detail |
| Brand | BERSIGAR |
| Model | Polaris 1728 (Silver / Black Dial Edition) |
| Movement | Seagull ST6 Automatic (Self-Winding Mechanical) |
| Case Dimensions | 40mm Width × 14mm Thickness |
| Lug-to-Lug | 44mm |
| Lug Width | 20mm |
| Band Length | 220mm |
| Case Material | Solid 316L Brushed & Polished Stainless Steel |
| Strap Material | Solid 316L Stainless Steel |
| Bracelet Style | Integrated Tapered Link Sports Bracelet |
| Bezel Style | Fixed Rounded-Octagonal Bezel with Vertical Brush Finish |
| Dial Color | Horizontal-Grooved Obsidian Black |
| Luminescence | Strong Lume on Applied Baton Indices and Hands |
| Glass | Sapphire Crystal (Anti-Reflective & Fingerprint Coating) |
| Crown | Threaded Screw-Down Crown with Protective Guards |
| Clasp | Comfort Folding Mechanism |
| Weight | 135g |
| Water Resistance | 10 BAR / 100 Meters |
Good to know
It runs on a Seagull ST6 automatic movement. It winds itself from the motion of your wrist, so there is no battery to replace.
Yes for swimming. It is rated to 100m (10 ATM), which covers rain, hand-washing and pool or sea swimming. It is not intended for scuba diving, and avoid hot showers and saunas.
The case measures 40mm — a versatile size that suits most wrists (roughly 15.5-19 cm / 6.1-7.5 in). Our watch size guide (/pages/watch-size-guide) explains how to measure your wrist.
It has a horizontal-grooved obsidian black dial, framed by a fixed rounded-octagonal bezel, under an anti-reflective sapphire crystal.
Yes. Other versions we carry include the Bersigar Polaris 1728 Silver Blue, the Bersigar Polaris 1728 Silver Sky Blue, the Bersigar Polaris 1728 Silver Green. Availability changes with stock, so the collection page always shows what is in stock today.
On the ChronoSeasons dial it sits at Hour III — Integrated Sport, part of the Boardroom season, and suits the office-to-dinner day and smart-casual weekends.
Yes. It ships brand-new and boxed from the brand's verified channel. Unworn watches can be returned within 30 days of delivery.
DHL/FedEx Express international · 3–7 days (EU/US), 10–14 days elsewhere . Orders ship by tracked courier worldwide and are processed within 1–3 business days. Unworn watches can be returned within 30 days of delivery — see our Shipping and Returns policies.
From the journal


Owners say
The 40mm rounded-octagonal bezel and horizontal-grooved black dial look great with a button-down shirt in meetings. Thin enough to clear my cuffs easily and feels balanced on my wrist.
Since this has an integrated bracelet design, you aren't swapping NATO straps onto it, but sizing the 316L steel links for my wrist was quick and the taper drapes comfortably.
I was skeptical that a $230 integrated-bracelet watch would have decent brushing on the links and bevels. In hand, the 316L steel transitions and sapphire crystal are super clean.
I usually wear pilot chronographs, but wanted a 40mm integrated steel automatic for travel. The rounded-octagonal bezel and horizontal-grooved black dial have a cool cockpit instrument vibe on my 6.5-inch wrist. Crown action was a little stiff out of the box before winding it a few times.
Fits my wrist right after taking out two links. Grooved black dial is sharp.