Specifications:

Brand: SEA-GULL

Series: Ocean Sail

Design: Thin and elegant, 2.5 hands, stick markers, dynamic beauty, small second hand

Dimensions: 40mm diameter, 10mm thickness, 57g weight

Dial: Wide dial, thin thickness, comfortable to wear

Movement: SEA-GULL ST17 automatic movement, 37-hour power reserve, 17 jewels, 21600 vibrations per hour

Water Resistance: 50 meters, suitable for daily activities but not for hot water or steam

Case Material: 316L stainless steel

Crystal Material: Synthetic sapphire

Case Back: Transparent

Strap: 20mm leather with buckle

Additional Features: Screw-down crown, NIVIS 1800137, scratch-resistant sapphire crystal, various color options available

Certification: CNAS approved, testing report valid until 2027.09.22

Details:

Design: Simple and elegant with stick markers on a white dial

Crystal: High hardness synthetic sapphire

Case Back: Transparent with brand engraving

Crown: Screw-down for easy winding

Strap: Comfortable and breathable pressed leather

Color Options: White dial with gold or steel case, black dial with gold or steel case

Operating Instructions:

1. Pull the crown to position 1 for manual winding, rotate the crown forward to wind up

2. Pull the crown to position 2 for time adjustment

Certification Details:

Testing Report: Mechanical watch tested and approved by Beijing Watch Quality Supervision and Inspection Station

Compliance: Meets QB/T1249-2013 standards for size, balance amplitude, water resistance, and timekeeping accuracy