SEIKO PRESAGE STYLE 60S SSA453J1

The Seiko Presage SSA453J1 Style 60's is an automatic watch with a vintage design aesthetic. Key specifications include a stainless steel case, a blue open-heart dial, a 24-hour sub-dial, and a brown synthetic leather strap. 

Case and exterior 

• Case diameter: 40.8mm
• Case thickness: 12.8mm
• Lug-to-lug: 47.0mm
• Case material: Stainless steel
• Crystal: Box-shaped Hardlex
• Strap material: Synthetic leather
• Lugs: 20mm
• Water resistance: 50 meters (5 bar) 

 Movement 

• Caliber: Seiko 4R39
• Type: Automatic with manual winding capability
• Jewels: 24
• Power reserve: Approx. 41 hours
• Functions: Stop second hand function, 24-hour hand
• Hands and indices: LumiBrite for visibility in the dark 

 Dial and features 

• Dial design: "Open heart" with a visible balance wheel and 24-hour sub-dial
• Case back: See-through and screw case back