Sea-Gull Open Heart Flywheel Guilloché Dial Roman Numeral 39mm
This Sea-Gull mechanical wristwatch pairs an open-heart dial with a flywheel display and a guilloché-finished face, framed by Roman numeral hour markers. The 39mm round case and matching 316L stainless steel strap keep the profile classic, while the butterfly buckle secures it on the wrist.
Inside, the ST2502 automatic movement runs at 21,600 vibrations per hour with 25 jewels, and a synthetic sapphire crystal protects the dial. The watch is rated to 5 bar water resistance and measures about 13mm thick, with a 20mm strap width and 47.8mm lug-to-lug span.
Key Features
| Brand | Sea-Gull |
| Model Number | 816.19.1090/816.11.1090 |
| Item Type | Mechanical Wristwatch |
| Movement | ST2502 |
| Winding Mode | Automatic Winding |
| Number of Jewels | 25 |
| Movement Frequency | 21600 |
| Case Material | 316L Stainless Steel |
| Case Shape | Round |
| Case Diameter | Approx. 1.5 in |
| Case Thickness | Approx. 0.5 in |
| Lug to Lug | 1.9 in |
| Crystal Material | Synthetic Sapphire |
| Strap Material | 316L Stainless Steel |
| Strap Width | Approx. 0.8 in |
| Clasp | Butterfly Buckle |
| Water Resistance | 5 Bar |
| Dial Features | Open Heart, Flywheel, Guilloché Dial, Roman Numeral |
| Net Weight | 5.6 oz |
| Warranty | 1 Year |
Highlights
- Open-heart dial with flywheel display and guilloché finish
- Roman numeral hour markers
- ST2502 automatic movement with 25 jewels
- 316L stainless steel case and strap
- Synthetic sapphire crystal
- 5 bar water resistance
Materials & care
The case and strap are made of 316L stainless steel and the crystal is synthetic sapphire. Wipe the watch with a soft dry cloth and keep it away from moisture beyond its 5 bar rating.
Frequently asked questions
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