Sea-Gull Open Heart Calendar Roman Numeral 42mm

  • USD249.00
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This Sea-Gull 819.428 is a mechanical wristwatch built around automatic winding and an open heart dial that puts the movement on display. The round 316L stainless steel case measures approximately 42mm across with a 14mm thickness, and the synthetic sapphire crystal protects the dial while a calendar aperture keeps the date at hand.

The leather strap runs approximately 7.5 inches and closes with a push button hidden clasp, and the watch carries a 5 bar water resistance rating. Inside, the ST2502 movement runs at 21600 frequency with 29 jewels, and the watch weighs 3.4 oz.

Key Features

Brand Sea-Gull
Model Number 819.428
Item Type Mechanical Wristwatch
Movement ST2502
Winding Mode Automatic Winding
Number of Jewels 29
Movement Frequency 21600
Case Material 316L Stainless Steel
Crystal Material Synthetic Sapphire
Case Shape Round
Case Diameter Approx. 1.7 in
Case Thickness Approx. 0.6 in
Lug-to-Lug Approx. 2 in
Strap Material Leather
Strap Length Approx. 7.5 in
Strap Width Approx. 0.9 in
Clasp Push Button Hidden Clasp
Water Resistance 5 Bar
Feature Calendar
Weight 3.4 oz
Warranty 1 Year

Highlights

  • Automatic ST2502 movement with 29 jewels
  • Open heart dial with calendar display
  • 316L stainless steel case with synthetic sapphire crystal
  • Leather strap with push button hidden clasp
  • 5 bar water resistance
  • 1 year warranty

Frequently asked questions

What is the movement and winding mode of this watch?

The watch is powered by an ST2502 automatic winding movement with 29 jewels and a frequency of 21600.

What materials are used for the case and crystal?

The round case is made of 316L stainless steel, and the crystal is synthetic sapphire.

What are the strap dimensions and clasp type?

The leather strap measures approximately 0.9 in wide and 7.5 in long, and it fastens with a push button hidden clasp.

What is the water resistance rating and warranty?

The watch has a water resistance of 5 bar and comes with a 1 year warranty.