Model: HMCF21
Power mode: fully automatic machinery
Movement: Seiko NH36A
Time accuracy: within 10 seconds of average daily difference
Table mirror material: sapphire table mirror
Table mirror coating: anti-reflection film/anti-reflective film/anti-fouling film
Case material: aluminum bronze
Crown material: aluminum bronze
Case rotation: anti-reverse rotation
Crown structure: screw-in lock waterproof type
Strap material: handmade leather
Clasp style: pin buckle
Luminous material: Japan C3 super luminous powder
Waterproof depth: 200m saturated diving waterproof
Whole table size: 46mm*44.8mm (including crown)
Overall thickness: 13mm
Warranty time: two years warranty