Movement type: automatic mechanical movement

Movement model: Japan NH35A

Movement features: 3 hands/calendar, 21600 times per hour (3Hz) frequency, second stop device, two-way automatic winding, 24 gemstones, 41 hour energy storage.

Case material: 316L stainless steel

Case process: wire drawing+polishing

Bottom cover material: 316L stainless steel

Bottom cover type: screw in bottom cover

Case diameter: 39mm (excluding crown)

Case length: 48mm (total length from top to bottom)

Shell thickness: 14.5mm (including mirror and bottom cover)

Ear size: 20mm

Weight of watch: 151.5g (including steel band)

Watch length: 220mm (total watch length/circumference)

Applicable wrist range: 140-210mm

Band material: solid stainless steel

Mirror material: synthetic sapphire

Mirror coating: anti glare blue coating

Crown type: screw in crown

Crown size: 6.5mm (diameter)

Surface color: 3D white, 3D blue

Surface luminescence: None

Surface dimension: 30.8 * 32 * 32.5 * 0.4

Pointer process: time division needle ridge back silver+IP blue seconds

Indicator light: None

Pointer size: 10 * 13.75 * 14

Waterproof grade: 100m waterproof/diving [can wash hands, swim and dive, meeting all daily waterproof purposes]

Exhaust valve: None

Warranty period: 10 years free warranty

Packaging standard: professional waterproof plastic box packaging