| Model Reference |
SSA421J1 / SSA421 (JDM Ref: SARY187) |
| Collection |
Presage Basic Line (Japanese Garden Series) |
| Movement Caliber |
Seiko 4R39 |
| Movement Type |
Mechanical Automatic (Self-winding, manual winding capability) |
| Functions |
Central hours, minutes, seconds | 24-hour sub-dial indicator | Open-heart view |
| Power Reserve |
Approx. 41 hours |
| Jewels |
24 |
| Frequency / Vibrations |
21,600 vph (3 Hz) |
| Accuracy Rating |
+45 to -35 seconds per day (Static) |
| Hacking / Second-Hand Stop |
Yes |
| Case Material |
Premium Stainless Steel |
| Case Diameter |
41.8 mm |
| Case Thickness |
12.5 mm |
| Lug-to-Lug Distance |
48.4 mm |
| Lug Width |
20 mm |
| Dial Color |
Textured Deep Indigo Blue (Zen Sand Motif) with Rose Gold-Tone Accents |
| Dial Window / Crystal |
Dual-Curved Sapphire Crystal |
| Case Back |
See-through / Exhibition screw case back |
| Crown Type |
Push-pull crown |
| Water Resistance |
Splash Resistant (3 bar / 30 meters) |
| Magnetic Resistance |
Equipped (4,800 A/m) |
| Band Material |
Genuine Calf Leather |
| Band Color |
Navy Blue |
| Clasp Type |
Three-fold clasp with push-button release |
| Weight |
Approx. 82 grams |