Technology

Dive Deep into History: The Citizen Aqualand Promaster 40th Anniversary Edition

2025-06-05

Author: Siti

A Watch That Could Save Your Life

Imagine a world where your life could hinge on the technology strapped to your wrist—especially in environments where survival is a challenge. Enter the tool watch, an essential companion for divers and adventurers alike, offering critical support when plunging into the ocean's depths.

A Legacy of Innovation

In the realm of dive watches, few can rival the iconic Citizen Aqualand. Since its groundbreaking debut in 1985 as the first dive watch featuring an electronic depth meter, the Aqualand has evolved from a simple timepiece into a sophisticated marvel of technology. Fast forward 40 years, and Citizen is set to honor this legacy with the stunning Aqualand Promaster 40th Anniversary Limited Edition.

A Tribute to the Original

Citizen has crafted this anniversary edition as a near-exact homage to the original Aqualand. The new model features the same asymmetrical design with a 50.7mm case, draped in a matte grey finish that echoes its predecessor. Where the original was available in various materials, this edition opts for the most striking look—a gold-plated crown and pushers paired with the muted steel case, reminiscent of the beloved Ref. C033.

Spot the Differences: Old vs. New

When compared side-by-side, the differences between the old and new models are minimal but telling. The 40th Anniversary edition boasts a sunray brushed black dial accented with gold-outlined luminous markers and oversized hands—yes, the minute hand shines a vibrant orange! Dial markings have also been updated, shifting from "water 200m resist" to the more robust "Diver’s 200m." And, of course, the digital display for depth tracking is back, accompanied by an elegantly sloped minute track.

Advanced Features in a Sleek Package

The caseback boasts a unique engraving celebrating the watch's remarkable journey, and inside lies the Calibre C520. This quartz engine not only tracks the time but features a calendar, a daily alarm, a 60-minute chronograph precise to 1/100th of a second, a diving timer, and, naturally, the depth indication. Expect a battery life of two years, keeping pace with an accuracy of ±20 seconds per month.

Gear Up in Style

The Citizen Aqualand Promaster 40th Anniversary Limited Edition comes fitted with a BENEBiOIL™ biomass-based black polyurethane strap, designed with signature wave-sections for comfort and style. Retailing at EUR 497, this limited edition is restricted to just 5,800 pieces globally, and it’s available to diving enthusiasts now. Don’t miss your chance to own a piece of diving history!