Dial (Most Distinctive Feature)
Vertically gradient turquoise (lake blue / Tiffany blue) sunburst dial mimicking layered underwater light effects; square-and-dot composite luminous hour markers; bronze independently adjustable triangular GMT hand; date window at the 4–5 o’clock position with inscriptions "GMT AUTOMATIC 3 DAYS DIVER’S 200M" printed on the dial; all hour markers and hands coated with LumiBrite luminous material.
Bezel
Unidirectional rotating black ceramic diving bezel with superior wear and scratch resistance, luminous dot markers, outperforming standard mass-produced aluminum bezels.
Case & Bracelet Dimensions
Case diameter: 42mm, case thickness: 12.9mm, total lug length: 48.6mm, lug width: 20mm
316L stainless steel case and bracelet treated with ultra-hard scratch-resistant Diashield coating
Triple-fold push-button safety clasp with integrated diving extension; total watch weight: 176g
Crystal & Case Back
Curved sapphire crystal with double-layer anti-reflective coating on the inner surface; screw-down engraved solid case back, screw-locked non-slip crown.
III. Movement Cal.6R54 (Universal High-End GMT Movement for the Entire Lineup)
Automatic and manual winding with hack seconds function for precise time setting
24 jewels, vibration frequency of 21,600 beats per hour
72-hour power reserve (3-day extended power reserve)
Daily accuracy tolerance: -15 to +25 seconds
Core functions: hours, minutes, seconds, date, independently adjustable 24-hour GMT dual time zone display