King Seiko SJE103J1
Description

The King Seiko SJE103J1 is a refined, vintage-inspired timepiece that balances elegance with precision. It runs on the 6L35 automatic movement, offering a 45-hour power reserve and a slim 10.7mm stainless steel case that wears comfortably at 38.6mm across.
With a box-shaped sapphire crystal, anti-reflective coating, and a clean date display, it’s designed for clarity and sophistication. The deployment clasp ensures a secure fit, while water resistance up to 5 bar and magnetic protection make it quietly resilient. At just 130g, it’s a subtle statement of timeless craftsmanship.
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Movement
Caliber Number: 6l35
Movement Type: Automatic with manual winding
Precision: '+15 to -10 seconds per day
Power Reserve: Approx. 45 hours
Jewels: 26
Functions:
- Stop second hand function date display
Case/Band
Case Material: Stainless steel
Thickness: 10.7 mm
Diameter: 38.6 mm
Lug-To-Lug: 45.8 mm
Crystal: Box shaped sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
Clasp: Deployment clasp with push button release
Distance Between Lugs: 19
Other Details
Magnetic Resistance: 4,800 a/m
Weight: 130 g
Features:
- Screw case back
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