88
-20%
Steeldive
SD1970
$79$99
Low $69
Worth It
Steeldive
SD1978 Emperor Tuna 1000m Diver Watch
0/ 100
HOLD OFFHold Off
Insufficient price history for a confident recommendation. Price tracking recently started — check back in 24-48 hours for a reliable verdict.
$249.00
Typical: $249.00|Lowest: $249.00|Highest: $249.00
Last checked: 8/9/2026, 12:25 AM UTC
Price Intelligence
90-Day Price History
Tracking since Aug 9, 2026 · Based on 1 tracked price · Updates every 15 minutes
UTC timezone
1 price pointsUpdates every 15 min
Technical
Specifications
MovementSeiko NH35
CrystalSapphire
Case MaterialStainless Steel
Case Diameter85mm
BezelCeramic
LumeBGW9
Specs are estimated from brand defaults and listing data. Always verify on the retailer page before purchasing.
Analysis
The Good & The Bad
What We Like
- Scratch-resistant sapphire crystal
- Seiko NH35/NH36 — reliable, widely serviceable Japanese automatic
- BGW9 Super-LumiNova — bright blue-green glow
- Ceramic bezel — scratch-proof and fade-resistant
What Could Be Better
- NH35/36 accuracy is -20/+40 sec/day — you'll adjust time weekly, not COSC-grade
- 85mm case diameter — will wear large on wrists under 7 inches