Basic Functions: Central hr, Central min, small sec

Complications:

Chronograph

Water resistance: 50m, 5bar

Case material: Stainless steel

Case size: 38.5 mm

Thickness: 12.9 mm

Lug width for bracelet: 20 mm

Lug-to-lug distance: 44.5 mm

Crystal: Sapphire

Caseback: Sapphire see-through

Sea-Gull ST1901B

Winding type: manual-wind

Chinese made

50 hours Power Reserve

Accuracy: -10/15 seconds / day

Frequency - Variations per hour: 3Hz - 21600 V/h

21 jewels

Diameter: 31.3mm,

Thickness: 6.25mm

Anti-shock: Incabloc

Dial: Satin sandblast