Bersigar Luxaura 1645 — Black Edition
The watch
Built around a black dial, the Bersigar Luxaura 1645 Black pairs a 42mm case with a Seiko NH35 automatic movement. Highlights include 100m water resistance and a sapphire crystal. It belongs to Hour I, Minimalist Dress, in our Boardroom season: a natural choice for client meetings, weddings and evenings that call for a jacket.
BERSIGAR Luxaura 1645: Black Edition
The BERSIGAR Luxaura 1645 Black delivers timeless elegance and versatile luxury. Defined by a light-catching 316L fluted bezel, an obsidian black sunburst dial, and faceted baton indices, this 42mm timepiece provides a bold, monochromatic presence suited for formal occasions and everyday wear.
Powered by the Seiko Japanese TMI NH35 automatic movement (24 jewels), the caliber winds continuously via natural wrist motion without requiring batteries. The dial features polished baton hands, luminescent hour markers, and a date display at 3 o'clock magnified by an external cyclops lens for swift legibility. Machined from solid 316L polished and brushed stainless steel, it is fitted with an articulated five-link Jubilee-style bracelet, a sapphire crystal, and a threaded screw-down crown providing 10 BAR (100M) pressure resistance.
Key Highlights
Seiko Japanese TMI NH35 Automatic Caliber: 24-jewel Japanese mechanical movement offering dependable precision, hacking seconds, and battery-free reliability.
Sunburst Black Dial: High-contrast black face accented by applied baton indices and fine outer-track minute markings.
316L Fluted Architectural Bezel: Precision-cut stainless steel fluted bezel engineered to reflect light dynamically from every angle.
Five-Link Jubilee 316L Bracelet: Articulated stainless steel bracelet providing ergonomic drape, all-day comfort, and high structural durability.
Sapphire Crystal: Ultra-hard, scratch-resistant sapphire glass ensuring long-lasting optical clarity.
10 BAR (100M) Water Resistance: Reinforced with a threaded screw-down crown and sealed caseback, built to withstand pressurized exposure, heavy rain, and daily wear.
Technical Specifications
| Specification | Detail |
| Brand | BERSIGAR |
| Model | Luxaura 1645 (Black Dial) |
| Movement | Seiko Japanese TMI NH35 Automatic (24 Jewels, Self-Winding) |
| Case Dimensions | 42mm Diameter × 12mm Thickness |
| Lug-to-Lug | 49.5mm |
| Lug Width | 20mm |
| Band Length | 220mm |
| Case & Strap Material | Solid 316L Polished & Brushed Stainless Steel |
| Bracelet Style | Five-Link Jubilee Style |
| Bezel Style | Fluted 316L Polished Steel Bezel |
| Dial Color | Black (Baton Indices) |
| Glass | Sapphire Crystal |
| Crown | Threaded Screw-Down Crown |
| Clasp | Comfort Folding Mechanism with Safety Deployment |
| Weight | 145g |
| Water Resistance | 10 BAR / 100 Meters |
Good to know
It runs on a Seiko NH35 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 42mm — a mid-to-large size that suits average and larger wrists (roughly 16.5 cm / 6.5 in and up). Our watch size guide (/pages/watch-size-guide) explains how to measure your wrist.
It has a black dial with baton indices, framed by a fluted 316l polished steel bezel, under an anti-reflective sapphire crystal.
Yes. Other versions we carry include the Bersigar Luxaura 1645 Two-Tone Black Dial, the Bersigar Luxaura 1645 Blue, the Bersigar Luxaura 1645 Two-Tone Yellow Gold. Availability changes with stock, so the collection page always shows what is in stock today.
On the ChronoSeasons dial it sits at Hour I — Minimalist Dress, part of the Boardroom season, and suits client meetings, weddings and evenings that call for a jacket.
Yes. It ships brand-new and boxed from the brand's verified channel. Unworn watches can be returned within 30 days of delivery.
From the journal
Owners say
Picked this up when I needed a classic black dress watch on steel for formal Navy dinners. The NH35 movement keeps steady time and the fluted bezel looks great, though the clasp could use an extra micro-adjustment hole for hot afternoons.
Normally I wear a racing chronograph on weekends, but this 42mm NH35 automatic has taken over my Monday-through-Friday courtroom rotation. The fluted bezel and baton markers are clean and easy to read.
Bought this for my dad's retirement. He loves the classic black dial and fluted steel bezel. He mentioned the clasp could use an extra micro-adjustment hole for warm afternoons.
The polished fluted bezel and black baton dial look way sharper in real Utah sunlight than in photos. Comfortable on my wrist for church, dinner, or everyday wear.
Sized the 316L bracelet for my wrist and also tried it on a black alligator-grain leather strap for hospital banquets. The butterfly-style clasp doesn't have half-links so the steel bracelet fit is slightly snug in humid weather.
With 100m water resistance and a sapphire crystal, I don't have to take this off when we head out to Lake Texoma after work. My only wish is that the clasp had an extra micro-adjustment hole for hot Dallas afternoons.
Thanks for the feedback, Jack! Having 100m water resistance on a fluted-bezel dress watch makes it super versatile, and we appreciate the note on clasp adjustment for Texas summers.
Even though I spent twenty years flying with busy chronographs, I wanted a clean black three-hander for dinners and Air Force reunions in Colorado Springs. The baton indices and NH35 sweep against the black dial are super crisp.
