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.

What it is

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.

Buying notes

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.

Market read

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.

Service expectations

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.