RC1697 Alpinist Style Case Blue Chapter Ring - Fluted
- In stock, ready to ship
- Inventory on the way
The RC1697 brings a vibrant blue chapter ring to the dual-crown Alpinist case, paired with a classic fluted bezel for a distinctive, stylish look. The secondary crown turns the inner ring, under a scratch-resistant flat sapphire crystal. A balanced 43.3mm presence and 12.2mm thickness make it a versatile base for Seiko 4R builds (crown stem cut for NH).
Quick specs
| Diameter | 43.3mm (with crown) |
| Lug-to-lug | 46.5mm |
| Thickness | 12.2mm (incl. case cover) |
| Lug width | 20mm |
| Material | 316L stainless steel |
| Finish | Brushed steel, fluted bezel |
| Crystal | Flat sapphire |
| Chapter ring | Blue (inner ring, rotated by the secondary crown) |
| Crown | Dual-crown (main + secondary); sterile, 1-piece stem for NH (5.9mm × 3.7mm) |
| Movement fit | 4R (crown stem cut for NH) |
| Dial fit | 28.5mm |
The case includes:
1. Brushed steel case with fluted bezel
2. Pre-installed flat sapphire crystal
3. Installed blue chapter ring
4. Sterile dual-crown (main + secondary), 1-piece stem for NH movement
5. Slim case cover (Solid or Sapphire — your choice)
6. 20mm spring bars
Matching bracelets (sold separately):
1. SB1244 Seiko Alpinist (SARB017) Jubilee Bracelet – Steel
2. SB1245O Seiko Alpinist (SARB017) Oyster Bracelet – Steel
3. SB1245P Seiko Alpinist (SARB017) President Bracelet – Steel
Buying options: Case Cover — Slim Solid Case Cover, or Slim Sapphire Case Cover (shows the movement; added cost).
Compatibility: Built for 4R movements, with a standard 28.5mm dial. Dual-crown design — the secondary crown rotates the inner chapter ring. Fits any 20mm strap or bracelet. See all movements.