The Aqua Terra Worldtimer displays all 24 time zones on a single dial with co-axial movement finishing; strong technical value at a price well below comparable Swiss GMT watches.
The Aqua Terra Worldtimer with all-24-timezone display and Master Chronometer certification offers a technical specification that few competitors match at the price; secondary prices track just below retail.
The Aqua Terra Worldtimer (ref. 220.10.43.22.03.001) is Omega's GMT-and-worldtime dress-sport watch, 43mm steel, blue lacquered dial with a hand-painted globe and 24-city ring, the caliber 8938 Master Chronometer. It is the modern travel watch that does the most with the least dial real estate: read local time on the hour/minute hands, read GMT-offset on the city ring, set local timezone with the crown without disturbing the running time.
Omega launched the Aqua Terra in 2002 as the dressier Seamaster sub-line, 150m water resistance, teak-pattern dial, designed for the wearer who wanted a Seamaster look without the rotating bezel. The Worldtimer variant arrived in 2017, with the caliber 8938 (Master Chronometer, METAS-certified, ±0/+5 seconds-per-day, 15,000-gauss-resistant). The dial features a hand-painted globe with continental outlines around a central worldtime disc; the cities ring shows 24 timezones in 24-hour format.
Steel and rose-gold case options; blue and silver dial variants. The 43mm size is the canonical reference.
Common things to check: dial freshness (the hand-painted globe and applied 'OMEGA' wordmark are difficult to service-restore, refinished dials are visible on close inspection); worldtime function (the city ring should rotate cleanly and the local-hour-set should disengage the GMT chain, verify the worldtime mechanism engages and releases without binding); caliber 8938 (Master Chronometer certification means the movement holds tolerance for 8-10 years, but the worldtime module adds wear surfaces); bracelet (the brushed-link Aqua Terra bracelet ships factory; aftermarket replacements are common and acceptable but should be priced accordingly); the gold-on-steel variants trade at substantially different prices than steel-only.
Steel Aqua Terra Worldtimer examples trade in the $6,800-$8,200 range through 2025-2026, against a retail of approximately $9,200. The Worldtimer is one of the better-priced modern dress-sport GMTs at this caliber-grade; the secondary market is consistently available and pricing is steady. Rose-gold variants trade meaningfully higher.
The Aqua Terra has not seen 2021-2022 speculation; the market is honest and full-set examples sell predictably.
The caliber 8938 carries an extended Omega service interval (8-10 years between services in normal use). Service is performed by Omega and select Omega-authorized independents; cost is moderate (low-four-figures via Omega). The worldtime module is the wear point worth watching on examples that have been in regular use; otherwise the watch is as service-tolerant as the standard Aqua Terra 8900 series.
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Cal. 8605 METAS certification and vertical "teak" dial lines authenticate the Aqua Terra GMT against standard Aqua Terra references
| Area | What to check | What is correct | Red flag |
|---|---|---|---|
| dial | Vertical teak lines and GMT designation | Vertical brushed lines on dial surface creating "teak" wood texture; "Co-Axial Master Chronometer" text; "GMT" designation; four-hand layout visible (hours, minutes, GMT, seconds); "Aqua Terra" text; "Omega" at 12 | Smooth or horizontal-grain dial (different Aqua Terra variant); missing "GMT" text; only three hands visible; "Co-Axial" without "Master Chronometer" on METAS variant |
| movement | Cal. 8605 via caseback | "Cal. 8605" on movement visible through exhibition caseback; co-axial escapement; "Master Chronometer" METAS certification; silicon balance spring; "Omega" signed; anti-magnetic to 15,000 gauss | Cal. 8500 or 8501 (non-GMT variants); ETA-based movement in claimed METAS variant; caseback without METAS certification text; exhibition back absent |
Editorial estimate. Actual prices vary by condition, date, and box/papers status. Live pricing data is in development.
| caseback | METAS certification marking | "Master Chronometer Certified" text; "15,000 gauss" antimagnetic rating; "METAS" logo or text; Omega medallion; serial number consistent with dial and movement signing | No METAS certification text; "COSC" only (earlier co-axial without METAS); caseback text inconsistent with claimed Cal. 8605 variant |
