2025 Omega Seamaster Aqua Terra "World Timer" Complete Set

Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer GMT Worldtimer — Ref. 220.12.43.22.03.001

IN PRODUCTION
Every other Aqua Terra in the lineup tells you the time in one place. This one tells you the time everywhere. The Worldtimer is the most technically ambitious watch in the AT collection, and the dial is the reason — the center carries a depiction of the Earth rendered on a Grade 5 titanium plate using laser-ablation technology, where the ocean is chemically blued by the laser itself and the continents are left in natural relief, surrounded by a 24-hour glass ring that shifts from light blue (day) to dark blue (night) as it rotates. The outer ring lists global destinations color-coded in red for GMT, silver for daylight-savings cities, and blue for non-DST locations, and the entire system reads at a glance — no pusher, no second crown, just look down and know what time it is in Tokyo, London, and São Paulo simultaneously. The sun-brushed blue exterior section of the dial still carries the Aqua Terra's signature vertical teak stripes, grounding the whole composition in the design language of the collection even as the center does something no other AT attempts.
The 43mm case gives the Worldtimer dial the real estate it needs to remain legible without crowding, and the polished ceramic bezel with its 24-hour scale replaces the standard AT's plain steel bezel with something that's both functional and visually elevated — ceramic won't scratch, won't fade, and catches light with a depth that brushed steel can't match. The Cal. 8938 underneath is a GMT-capable derivative of the 8900 platform with an independently adjustable hour hand, which means you can jump time zones by pulling the crown without stopping the movement or disturbing the Worldtimer display. The structured blue rubber strap integrates into the case through a solid polished link, keeping the visual line unbroken from bezel to clasp, and at 150 meters of water resistance with full METAS Master Chronometer certification, the Worldtimer carries the same mechanical credibility as every other watch in the AT family — it just happens to do more with it.
Key Details

• Case diameter: 43 mm
• Case thickness: 14.1 mm
• Lug-to-lug: ~50.3 mm
• Lug width: 21 mm
• Weight: not officially listed
• Case material: 316L stainless steel, polished
• Crystal: scratch-resistant sapphire, anti-reflective treatment both sides
• Water resistance: 150 m / 15 bar
• Caseback: transparent/exhibition (sapphire)
• Bezel: polished ceramic with 24-hour scale
• Crown: screw-down
• Dial exterior: sun-brushed blue with vertical teak stripes
• Dial center: Earth depiction on Grade 5 titanium plate, laser-ablated (ocean in blue, continents in relief, colors achieved naturally through chemical reaction)
• 24-hour ring: glass, light blue (day) to dark blue (night)
• City ring: global destinations in red (GMT), silver (DST locations), blue (non-DST)
• Hands: rhodium-plated, filled with white Super-LumiNova
• Hour markers: rhodium-plated, luminous
• Date: window at 6 o'clock
• Caliber: Omega 8938 (in-house, GMT/Worldtimer derivative of Cal. 8900)
• Movement type: self-winding automatic, Co-Axial escapement
• Frequency: 25,200 vph / 3.5 Hz
• Jewels: 38
• Power reserve: 60 hours
• Balance: free sprung, silicon Si14 balance spring
• Anti-magnetic: >15,000 gauss
• GMT function: independently adjustable hour hand
• Finishing: rhodium-plated rotor and bridges, Geneva waves in arabesque
• Certification: COSC Chronometer + METAS Master Chronometer
• Strap: structured blue rubber, integrated into case via solid polished link
• Clasp: foldover deployment