SPB521J1
The Seiko Presage SPB521J1 brings modern mechanical precision to classic design. Featuring a 36mm stainless steel case, elegant light blue dial, and dual-curved sapphire crystal, this watch is powered by the 6R55 automatic movement with a 72-hour power reserve. A see-through case back and 100m water resistance complete this refined everyday timepiece.
Movement
• Calibre: 6R51 (automatic, manual winding)
• Accuracy: +25 / -15 s per day
• Power Reserve: ≈ 72 hours
• Jewels: 24
• Function: Stop-seconds (hacking)
Dial & Hands
• Colour: Indigo silk-textured finish
• Display: Three-hand, no date
Case & Crystal
• Material: Stainless steel, super-hard coating
• Diameter: 36.0 mm Thickness: 12.5 mm Lug-to-lug: 41.4 mm
• Crystal: Dual-curved sapphire, AR coating (inner)
• Case Back: Screw-down, see-through
Bracelet
• Material: Stainless steel, seven-piece multi-row
• Length: 195 mm Lug Width: 18 mm
• Clasp: Deployment with push-button release
Durability
• Water Resistance: 10 bar (100 m)
• Magnetic Resistance: 4,800 A/m
• Weight: 118 g
Additional Features
• Uncluttered no-date dial for symmetry
• Classic 1970s-inspired bracelet links for flexibility and comfort
