Cestrian Ocean Series Black Dial Silicone Strap Automatic GMT Men's Watch CO-BKS002

The Cestrian CO-BKS002 Ocean Series GMT combines dependable dive-watch capability with the practicality of a second time-zone function. Designed around Cestrian’s philosophy of purpose-driven watchmaking, it balances durability, legibility, and versatility in a timepiece suited to everyday wear, underwater adventures, and international travel.

Reliable Automatic GMT Movement

At its core is the NH34 automatic GMT movement, selected for its proven performance and ease of servicing. The integrated GMT function allows you to track a second time zone with clarity and precision, making it a practical companion for frequent travellers and those who regularly work across different time zones.

Robust Stainless Steel Construction

The solid stainless-steel case is engineered to withstand everyday wear and demanding conditions. A screw-down crown, sapphire crystal, and 200 metres of water resistance provide the durability and protection expected from a capable dive watch.

Black Sunray Dial & Enhanced Legibility

The black sunray dial creates a refined sense of depth, with its radial brushed texture subtly shifting under changing light to enhance its visual character.

Applied nickel-plated hour markers add dimension against the deep black surface, while the polished hands maintain a clean, purposeful appearance. Generous Swiss Super-LumiNova ensures excellent visibility in low-light conditions, complemented by a contrasting luminous GMT hand that makes second-time-zone tracking clear without disrupting the dial’s balanced, instrument-focused design.

Cestrian-Branded Silicone Strap

This version features a black Cestrian-branded silicone strap, finished with the distinctive Cestrian shield. Designed for durability, flexibility, and all-day comfort, it adds a sport-driven character while remaining lightweight and practical for travel and everyday wear.

The classic pin buckle provides a secure, dependable fit, making the strap a practical choice for an active lifestyle.

Built for Adventure & Travel

The Ocean Series GMT is designed with longevity, usability, and reliable performance at its core. Its dependable automatic GMT movement, robust stainless-steel construction, highly legible black dial, and comfortable silicone strap create a versatile timepiece ready for everyday life and travel.

Cestrian CO-BKS002 Ocean Series GMT — dependable performance, practical dual-time functionality, and sport-driven design without unnecessary compromise.

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Every watch includes a manufacturer warranty. You’ll find more warranty info listed in the product description.

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Yes — you have 30 days from delivery to return or exchange your item, provided it’s unused and in its original packaging.