Seiko 300m Tuna SBBN033 with iconic 7C46 movement. Bought new by me and put straight into my glass cased collection. Sadly for sale to fund new purchase. Case is dated April 2015 complete with tags and packaging.

Battery powered quartz movement

Caliber # 7C46

Stainless steel case

Diamond shield Case coating

Silicon band Band Material

Dual curve glass material 

Lumibrite visibilty increased by 60% of the previous model

± 15 seconds per month accuracy

300m waterproof for saturation diving

5 years battery life

Antimagnetic

47.7mm × 47.7mm × 14.7mm Size

125g Weight 

Screw back 

rotating bezel 

screw lock type crown

Unique L-shaped packing structure

4:00 position crown