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42 mm
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Atlantic

Worldmaster COSC Chronometer Edition | Blue

Chronograph

≈ $1,344Sold out

Approximate. Charged in CHF (CHF 1,075).

Last checked Oct 26, 2026

Movement: Automatic, COSC Chronometer Certified, Sellita SW 200-1/COSC

Dial: Blue Color, Date Display, Hand Applied Indexes, Luminous Hands, Luminous Indexes at 12h, 3h, 6h, 9h

Bracelet Style: Butterfly Clasp, Genuine Calf Leather Strap

View on Atlantic’s site ↗

From Atlantic

COSC Chronometer Certified by the Official Swiss Chronometer Testing Institute Experience unparalleled accuracy with the Atlantic Worldmaster COSC Collection, certified by the Official Swiss Chronometer Testing Institute. Each piece in this series combines exquisite craftsmanship and high-quality materials in a timeless design. Available in three elegant colors, these watches offer a luxurious addition to your style, ensuring precision and sophistication on your wrist. Atlantic Worldmaster COSC Collection: Timeless Elegance, Certified Precision Unmatched Precision and Quality Discover the epitome of timekeeping excellence with the Atlantic Worldmaster COSC Collection. Each watch is meticulously certified by the Official Swiss Chronometer Testing Institute, a testament to its unmatched precision and reliability. Crafted using only the finest materials, these timepieces are designed to offer both durability and a luxurious aesthetic. Whether for daily wear or special occasions, the Worldmaster COSC Collection ensures accuracy at the highest level, making every second count. Elegant Design and Versatile Style The Atlantic Worldmaster COSC Collection stands out with its timeless design, available in three elegant colors to complement any wardrobe. From the sleek, professional look to a more casual style, these watches adapt seamlessly. The careful craftsmanship is evident in every detail, from the polished finish to the comfortable fit on your wrist. This collection is not just a purchase but an investment in a piece of art that offers both function and fashion, making it a perfect accessory for those who appreciate luxury and performance.

Specifications

Details and photos come from Atlantic’s website, last checked Oct 26, 2026. Specs were read automatically and may contain mistakes.

Case

Diameter
42 mm
Lug-to-lug
Not listed
Thickness
10.3 mm
Thickness incl. crystal
Not listed
Lug width
Not listed
Material
316L steel

Movement

Type
Automatic
Caliber
Sellita SW200-1
Power reserve
Not listed
Functions
Not listed

Crystal and bezel

Crystal
Sapphire
Bezel
Not listed

Water resistance

Rated to
50 m

Dial and lume

Dial
blue
Lume
Not listed

Strap

Strap
leather
Every spec Atlantic lists
Atlantic Worldmaster COSC Collection
Timeless Elegance, Certified Precision
Movement
Automatic, COSC Chronometer Certified, Sellita SW 200-1/COSC
Case Material
Stainless Steel
Case Diameter
42mm
Case Thickness
10.3mm
Dial
Blue Color, Date Display, Hand Applied Indexes, Luminous Hands, Luminous Indexes at 12h, 3h, 6h, 9h
Crystal
Sapphire Crystal
Bracelet Style
Butterfly Clasp, Genuine Calf Leather Strap
Water Resistance
50 meters | 5 bar
Reference
52781.41.51

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