Automatic World Time Mechanical Watch – Seagull ST16K3, Moon Phase & Sapphire Crystal

Discover a sophisticated mechanical timepiece designed around travel, traditional watchmaking and multifunction display. This Automatic World Time Mechanical Watch combines a Seagull ST16K3-3A automatic movement, sapphire crystal, 316L stainless steel case and genuine leather strap with an elaborate dial featuring World Time, moon phase, date, weekday and 24-hour indications.

Its combination of Roman numerals, guilloché-inspired dial detailing and multiple complications gives it a distinctly classical luxury-watch character.

🌍 12-City World Time Display

The upper section of the dial features a distinctive World Time display with 12 international city references.

The display provides a convenient visual reference for comparing time across different regions and reinforces the watch's travel-inspired character.

A dedicated case button is used to adjust the World Time indication.

🌙 Moon Phase & 24-Hour Display

At 6 o'clock, an eye-catching moon phase-style display is integrated with a 24-hour scale, adding depth and visual interest to the dial.

The combination of blue, gold and metallic detailing makes this one of the most distinctive elements of the watch.

🇨🇳 Seagull ST16K3-3A Automatic Movement

At the heart of the watch is the Seagull ST16K3-3A automatic mechanical movement.

According to the manufacturer specifications, the movement features:

Movement: Seagull ST16K3-3A
Type: Automatic mechanical
Jewels: 27
Frequency: 21,600 vibrations per hour
Movement diameter: 26 mm (1.02 in)
Stated deviation: ≤20 seconds

The automatic mechanism is powered by wrist movement, eliminating the need for a conventional battery.

💎 Sapphire Crystal

The detailed dial is protected by sapphire crystal, providing excellent scratch resistance and clarity.

This is a particularly valuable feature on a watch with such an intricate dial, helping preserve its appearance during everyday wear.

🛡️ 316L Stainless Steel Case

The 316L stainless steel case combines durability with an elegant polished appearance.

Its classic round profile, slender bezel and traditional lugs complement the Roman numeral dial without overwhelming its numerous complications.

🐄 Genuine Leather Strap

The watch is fitted with a genuine leather strap featuring a crocodile-pattern texture.

Depending on the selected version, the watch is available with black or brown leather, paired with silver-tone or gold-tone cases and white or black dials.

A push-button hidden deployment clasp provides a more refined alternative to a conventional pin buckle.

💧 5 ATM / 50 M Water Resistance

The watch is rated to 5 ATM / 50 m (164 ft) water resistance.

This provides protection against normal everyday water exposure and splashes. It is not intended as a professional diving watch.

📅 Multifunction Mechanical Display

Beyond conventional hours, minutes and seconds, the dial combines several useful indications:

World Time • Weekday • Date • 24-Hour Display • Moon Phase-Style Display

A dedicated date window at 3 o'clock provides clear everyday readability while the additional subdials give the watch its complex mechanical appearance.

📏 Dimensions & Specifications

Movement: Seagull ST16K3-3A automatic mechanical
Case diameter: 42 mm (1.65 in)
Case thickness: 11.5 mm (0.45 in)
Strap length: 22.8 cm (8.98 in)
Strap width: approximately 20–24 mm (0.79–0.94 in)
Case material: 316L stainless steel
Strap: Genuine leather
Crystal: Sapphire crystal
Water resistance: 5 ATM / 50 m (164 ft)
Display: Analog with Roman numeral markers
Jewels: 27
Frequency: 21,600 VPH
Functions: World Time, date, weekday, 24-hour indication, moon phase-style display
Clasp: Push-button hidden deployment clasp

🎁 Traditional Watchmaking with a Travel-Inspired Dial

The combination of a Seagull automatic movement, World Time display, sapphire crystal, genuine leather and multiple mechanical indications gives this watch significantly more character than a conventional three-hand automatic watch.

It is an excellent choice for mechanical-watch enthusiasts, travelers and collectors looking for a classical timepiece with an unusually detailed dial.